A promotional image from Sierra Nevada Corp. for the planned launch of the Dream Chaser on an Atlas V from Kennedy Space Center. Credit: SNC.
Commercial space company Sierra Nevada Corporation and NASA announced plans today to launch an orbital test flight of the Dream Chaser vehicle in 2016, and that they plan to use processing facilities at Kennedy Space Center as well as land the vehicle at NASA’s Shuttle Landing Facility in Florida.
“Today we’re very proud to announce that we have now formally negotiated our orbital spaceflight,” said Mark Sirangelo, the head of Sierra Nevada Space Systems. “We have acquired an Atlas V rocket and established a launch date of November 1, 2016, so in a little over two years from now and we’re going to be taking our vehicle to space on the board one of the best rockets that has ever been designed, the Atlas V.”
The mission will be automated and unmanned, but if all goes well Sierra Nevada hopes to have a human flight by sometime in 2017.
The Dream Chaser space plane atop a United Launch Alliance Atlas V rocket. Image Credit: SNC
The seven-passenger vehicle looks like a mini-space shuttle and is about 9 meters long (29.5 feet) with a wingspan of 7 meters (22.9 feet).
Sirangelo said they will be doing Dream Chaser pre- and post-flight processing at KSC along with Lockheed Martin at the Operations and Checkout (O&C) facility at KSC. The O&C is an historic facility which was originally built to process Gemini and Apollo era spacecraft. After significant upgrades by NASA and the State of Florida, it is currently being used by Lockheed Martin Space Systems to develop, assemble and test NASA’s Orion spacecraft.
The 2017 flights will be the first time an Atlas V will be used to send people to space since the Mercury program. The landing at the SLF will be the first landing of a space vehicle there since the final space shuttle mission, STS-135, landed there on July 21, 2011.
“That is way too long (between landings),” said Steve Lindsey, former NASA astronaut and now Sierra Nevada’s Dream Chaser program manager, “and we intend to do something about it and do it very soon… We want to continue the long tradition that was started on the Florida space coast so many years ago.”
During a question and answer period with media, questions were asked about which entity is paying for which portions of the launch and processing. But the officials were coy about not answering those questions directly.
Officials from NASA, Sierra Nevada, Lockheed Martin, United Launch Alliance and Space Florida took part in the announcement, which you can watch below.
“Today’s announcement confirms the faith the commercial industry has in Kennedy Space Center,” said Bob Cabana, the director of Kennedy Space Center.
Left landing gear failed to deploy as private Dream Chaser spaceplane approaches runway at Edwards Air Force Base, Ca. during first free flight landing test on Oct. 26, 2013 – in this screenshot. Credit: Sierra Nevada Corp.
The Dream Chaser had a test landing in October, 2013 after it was hoisted in the air by a helicopter. The automated landing went well except that one of the landing gears failed to deploy properly.
Sierra Nevada announced last week that they had completed their latest milestone for the NASA’s commercial crew program, the Commercial Crew Integrated Capability (CCiCap), Milestone 7, which is the Certification Plan Review for the entire Dream Chaser Space System. They delivered nearly 6,000 pages of technical documentation on the strategy, verification, and validation of Dream Chaser and its integration with the Atlas V launch vehicle and ground mission control systems.
A composite image (X-ray and optical wavelengths) showing galaxy cluster RX J1532.9+3021 and the black hole at its center. Credit: X-ray: NASA/CXC/Stanford/J.Hlavacek-Larrondo et al, Optical: NASA/ESA/STScI/M.Postman & CLASH team
Got gas? The black hole in galaxy cluster RX J1532.9+3021 is keeping it all for itself and stopping trillions of stars from coming to be, according to new research. You can see data above from NASA’s Chandra X-ray Observatory (purple) and the Hubble Space Telescope (yellow).
The drama is taking place about 3.9 billion light-years from Earth, showing an extreme phenomenon that has been noted in other galaxies on smaller scales, Chandra officials stated.
“The large amount of hot gas near the center of the cluster presents a puzzle,” a statement read. “Hot gas glowing with X-rays should cool, and the dense gas in the center of the cluster should cool the fastest. The pressure in this cool central gas is then expected to drop, causing gas further out to sink in towards the galaxy, forming trillions of stars along the way. However, astronomers have found no such evidence for this burst of stars forming at the center of this cluster.”
Black hole with disc and jets visualization courtesy of ESA
What’s blocking the stars (according to data from Chandra and the National Science Foundation’s Karl G. Jansky Very Large Array) could be supersonic jets blasting from the black hole and shoving the gas in the area away, forming cavities on either side of the galaxy. These cavities, by the way, are immense — at 100,000 light-years across each, this makes them about as wide as our home galaxy, the Milky Way.
The big question is where that power came from. Perhaps the black hole is “ultramassive” (10 billion times of the sun) and has ample mass to shoot out those jets without eating itself up and producing radiation. Or, the black hole could be smaller (a billion times that of the sun) but spinning quickly, which would allow it to send out those jets.
Steve Swanson, commander of Expedition 40, during a spacewalk on 2007 shuttle mission STS-117. Credit: NASA
Remember those snorkels and pads astronauts used during the ammonia pump replacement on station this past December? The new measures went a long way to helping astronauts stay safe if another helmet water leak happens, but at the same time, NASA is eager to find the cause so they know how it happened and how to prevent it.
Two maintenance spacewalks are planned for Expedition 40, but they’re not necessarily going forward yet. NASA has traced the issue to a fan pump separator, but there’s another issue, explained expedition commander Steve Swanson: where the particulates in the water came from. Perhaps they were from a filter, or perhaps from the water system itself. So NASA is reserving spacewalks on a need-only basis until more is known.
“That was the problem. Now, we’ve got to find out where that came from,” Swanson said in a phone interview with Universe Today from Houston to preview Expedition 39/40’s mission, which launches in late March. Joining the two-time shuttle astronaut will be two other people, including Alexander Skvortsov. The Russian cosmonaut commanded Expedition 24 in 2010, which experienced a similar ammonia leak to the one that was just repaired a few months ago.
Expedition 39/40 cosmonaut Alexander Skvortsov during a 2010 mission to the International Space Station, when he served as commander of Expedition 24. In the background is NASA astronaut NASA astronaut Tracy Caldwell Dyson. Credit: NASA
While leaks and spacewalks are the items that grab headlines when it comes to spaceflight, one of the major goals of the International Space Station is more subtle. Researchers hope to understand how spaceflight affects the human body during long-duration missions. (This will be a major focus of a one-year mission to station in 2015.) Through a translator, Skvortsov explained that the recent decision to extend station’s operations to at least 2024 will be a help for research of this kind.
“It is great that they have expanded the station until 2024 at least, and it will be very beneficial to the science programs and projects we have on board,” he said in Russian. “I hope that it will be extended even further. It will depend on the condition of the station.”
Expedition 39 is expected to launch March 26, 2014 from the Baikonour Cosmodrome in Kazakhstan. The crew will join orbiting spacefarers Koichi Wakata (who will command Expedition 39, a first for Japan), Rick Mastracchio (who participated in the ammonia pump swap-out) and Mikhail Tyurin.
The Expedition 39/40 crew at a NASA press conference in January 2014. From left, Oleg Artemyev, Alexander Skvortsov and Steve Swanson. Credit: NASA
The new supernova in M82 captured by the 32-inch Schulman Telescope (RCOS) at the Mount Lemmon Sky Center in Arizona on January 23, 2014. Credit and copyright: Adam Block/Mount Lemmon SkyCenter/University of Arizona
With news yesterday of the closest confirmed type Ia supernova since the 1800’s, astronomers in the northern hemisphere risked frostbite and hoped for clear skies to try and capture images of the newly named supernova, 2014J.
Others quickly sorted through images taken of the galaxy M82 taken within the last week to see if they managed to capture it unknowingly! Currently at about +11.5 magnitude, you’ll need at least a 4-inch and larger telescope to see SN2014J. But it is not hard to see in these great images here, as the object is the only bright star shining in the galaxy. Of course, not all of us have access to equipment like the 32-inch telescope at the Mount Lemmon Sky Center, but Adam Block stayed up for most of the night and managed to capture this spectacular image of M82 and the supernova.
See below for more:
An image of M82 taken on January 19, 2014, before the official announcement of the discovery of the supernova. SN2014J is clearly visible. Credit and copyright: Sarah Hall & Colin Campbell.
This is one example of astronomers looking back at recent images to see if they captured the supernova without knowing it. This one by Sarah Hall and Colin Campbell was taken on January 19, 2014 between 20:39 to 20:44 UTC with a Newtonian Telescope with prime focus DSLR observation, 8 inch aperture 1000mm focal length (f/5).
The buzz on Twitter has been that the supernova was so bright, that automated supernova search telescopes and programs missed it because it was too bright and they dismissed it as an anomaly.
One of the latest Astronomer Telegrams puts the star going supernova no earlier than January 11 and sometime prior to January 19, but they haven’t narrowed it down any further yet. I’m sure more images will surface to help pinpoint the time.
In the meantime, enjoy these other great shots:
‘before and after’ animation of SN2014J, with the before taken in April 2013 and the after taken on January 22, 2014. Credit and copyright: Gianluca Masi, Virtual Telescope Project. A view taken on January 22, 2014 of supernova 2014J in Messier 82 (M82) located in the constellation Ursa Major. Credit and copyright: Tom Wildoner.Supernova in M82 The Cigar Galaxy on January 23rd 06:23 UTC, comparing to an image taken in April 2013. Credit and copyright: Efrain Morales/Jaicoa Observatory.M82 showing the Type la supernova on January 23, 2014. A 45 minute exposure with SXVR-H9C + C9. Credit and copyright: David G. Strange.Comparison images of M82 on January 4 and January 23, 2014. Credit and copyright: Scott MacNeill, Frosty Drew Observatory.Comparison images of M82 The image on the left was taken on December 24th, 2013. The image on the right was taken on January 20th, 2014. Credit and copyright: Stephen Rahn.M82 with SN2014J, taken on January 22, 2014 from Rosebank Observatory, Torquay, UK. Credit and copyright: Paul M. Hutchinson.Supernova in M82 taken Jan 22, 2014 with Canon 60D, EF 75-300mm zoom lens at 300mm and f/5.6, ISO5000 for 30 seconds on an iOptron Skytracker. Credit and copyright: Robert Sparks.Image of SN2014J in M82 taken on January 23, 2014 from Hampshire, UK. Credit and copyright: Daniel Robb.Image of the new supernova in M82, taken on January 22, 2014. Credit and copyright: Larry McNish, Calgary Centre of the Royal Astronomical Society of Canada.
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Artist's conception of NASA's Orbiting Carbon Observatory, which will examine carbon dioxide in the atmosphere (and its effect on climate change) after an expected launch in July 2014. Credit: NASA
How badly will climate change affect our planet? Different models tell us different things, and that’s partly because we need more precise information about the factors that warm the world. How much is sea level rising? What are the levels of carbon dioxide in the atmosphere? All of these things must be known.
NASA expects to launch five Earth science missions this year, which is the biggest roster in more than a decade. They’ll track rainfall, seek water hiding in soil, and examine carbon dioxide and ocean winds around the world. Here’s a quick rundown of the busy launch schedule:
Global Precipitation Measurement (GPM) Core Observatory (Feb. 27): This will be the first of a series of satellites to look at snow and rain from space. “This new information will help answer questions about our planet’s life-sustaining water cycle, and improve water resource management and weather forecasting,” NASA stated. This joint spacecraft with the Japanese Aerospace Exploration Agency (JAXA) will launch from Japan’s Tanegashima Space Center on a H-IIA rocket. GPM was built at NASA’s Goddard Space Flight Center in Maryland.
ISS-RapidScat (June 6): This sensor will sit on the International Space Station and monitor ocean winds (including storms and hurricanes). What’s interesting about this mission is its use of old parts, NASA points out, as well as the decision to mount it on a station rather than take the more expensive route of making it a separate satellite. The probe will launch on a SpaceX Dragon spacecraft (aboard a SpaceX Falcon 9 rocket) from Florida’s Cape Canaveral Air Force Station as part of a regular commercial resupply flight.
Artist’s conception of how ISS-RapidScat will work. Credit: NASA/JPL-Caltech/Johnson Space Center
Orbiting Carbon Observatory (OCO)-2 (July): NASA plans to take a second crack at this type of satellite after the OCO launch failure in 2009. The satellite will seek out carbon dioxide to better understand where it is emitted (in both natural and artificial processes) and how it moves through the water, air and land. This will launch from California’s Vandenberg Air Force Base on a Delta II rocket. OCO-2 will be managed by NASA’s Jet Propulsion Laboratory in California.
Cloud-Aerosol Transport System (CATS) (Sept. 12): This technology demonstration project will use lasers, in three wavelengths, to examine tiny particles borne into the atmosphere from phenomena such as pollution, smoke, dust and volcanoes. “These aerosol particles pose human health risks at ground level and influence global climate through their impact on cloud cover and solar radiation in Earth’s atmosphere,” NASA stated. This will also leave Earth aboard a SpaceX resupply flight from Cape Canaveral.
Soil Moisture Active Passive (SMAP) mission (November): Will check out the moisture level of soil, with the aim of refining “predictions of agricultural productivity, weather and climate,” NASA stated. Also managed by JPL, this satellite will spend its time in an almost-polar “sun-synchronous” orbit that keeps the sun’s illumination below constant during SMAP’s turns around the Earth. SMAP will launch from Vandenberg on a Delta II rocket.
Jupiter as imaged by Michael Phillips on July 25th, 2009.
Jupiter is a happening place in the solar system. While bashful Mars only puts on a good show once every two year opposition period, and inner worlds such as Mercury and Venus yield no surface details to backyard observers at all, the cloud tops of Jupiter display a wealth of changing detail in even modest backyard telescopes.
And this month is a great time to start observing Jupiter, as the largest planet in our solar system just passed opposition on January 5th. Recently, veteran astrophotographer Michael Phillips amazed us here at Universe Today once again with a stunning time-lapse sequence of Jupiter and its moons Ganymede and Io. Now, he’s outdone himself with a new full rotation compilation of the gas giant planet.
The capture is simply mesmerizing to sit and watch. At 9.9 hours, Jupiter has the fastest rotational period of any planet in our solar system. In fact, with Jupiter currently visible low to the east at sunset, it’s possible to follow it through one rotation in the span of a single long January winter night.
We caught up with Michael recently and asked him about this amazing capture. The sequence was actually accomplished over the span of five successive evenings. This made it challenging to stitch together using a sophisticated program known as WINJupos.
“While this is possible on a long winter night when it is darker longer, I typically find it easier to do over multiple nights than one long sleepless night,” Michael told Universe Today. “If you wait too many days between observations, the features will change significantly, and then two nights will not match up clearly. The seams that result from using multiple nights are tricky to stick together. I created multiple non-overlapping seams and tried to blend them out against one another as layers in my image editing software. The result is smoother, but not quite the same as a single observation.”
A 14” f/4.5 Newtonian reflecting telescope was used for the captures. “Similar weather conditions and camera settings help quite a bit to make the multiple nights’ segments match up better,” Michael noted. “Keeping the same settings, using the same location away from my house in the corner of the yard (to reduce local atmospheric turbulence) night after night gives consistent results after removing the variability of the weather.”
Planetary photography also requires special considerations prior to imaging, such as getting Jupiter high enough in the sky and at specific longitudes to get full coverage in the rotation sequence.
“I try to consider the local weather patterns and atmospheric stability (seeing), but in reality, I pushed myself to get out as much and often as I could,” Michael told Universe Today. “Typically, I try to wait until Jupiter is at the highest in the sky, as the result is looking through less atmosphere and thus more stable conditions. Sometimes, the planets jiggle around and you just want to scream ‘SIT STILL!’ Basically around the time of opposition I go out as often as it’s clear, as those are opportunities that you don’t get back again until next year.”
Jupiter reaches opposition just over once every 13 months, moving roughly one constellation eastward each time. 2013 was an “oppositionless” year for Jupiter, which won’t occur again until 2025. Michael also notes that from his observing location at 35 degrees north latitude, Jupiter currently peaks at an altitude of 77 degrees above the horizon when it transits the local meridian. “I wasn’t going to squander it waiting for perfect conditions!”
In fact, Jupiter is currently in a region in the astronomical constellation of Gemini that will be occupied by the Sun in just over five months time during the June Solstice. Currently at a declination of around 22 degrees 45’ north, Jupiter won’t appear this high in the northern sky near opposition again until 2026.
It’s also amazing to consider the kind of results that backyard observers like Michael Phillips are now routinely accomplishing. It’s an interesting exercise to compare Michael’s capture side-by-side with a sequence captured by NASA’s New Horizons spacecraft during its 2006 flyby of Jupiter:
Both sequences capture a wealth of detail, including the enormous Great Red Spot, the Northern and Southern Equatorial Belts, and numerous white spots and smaller swirls and eddies in the Jovian atmosphere.
To date, six spacecraft (Pioneer 10 and 11, Voyagers 1 and 2, New Horizons and Cassini) have made flybys of Jupiter, and one, Galileo, orbited the planet until its demise in 2003. Juno is the next in this legacy, and will be inserted into orbit around Jupiter in July 2016.
Now is the time to get out and observe and image Jupiter and its moons, as it moves higher into the sky on successive evenings towards eastern quadrature on April 1st, 2014.
Congrats to Michael Phillips on an amazing sequence!
Engineers prepare Orion’s service module for installation of the fairings that will protect it during launch this fall when Orion launches on its first mission. The service module, along with its fairings, is now complete. Credit: NASA
Engineers prepare Orion’s service module for installation of the fairings that will protect it during launch this fall when Orion launches on its first mission. The service module, along with its fairings, is now complete. Credit: NASA
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2014 is the Year of Orion.
Orion is NASA’s next human spaceflight vehicle destined for astronaut voyages beyond Earth and will launch for the first time later this year on its inaugural test flight from Cape Canaveral, Florida.
The space agency is rapidly pressing forward with efforts to finish building the Orion crew module slated for lift off this Fall on the unmanned Exploration Flight Test – 1 (EFT-1) mission.
NASA Administrator Charles Bolden and science chief Astronaut John Grunsfeld discuss NASA’s human spaceflight initiatives backdropped by the service module for the Orion crew capsule being assembled at the Kennedy Space Center. Credit: Ken Kremer/kenkremer.com
The Orion module stack is comprised of three main elements – the Launch Abort System (LAS) on top, the crew module (CM) in the middle and the service module (SM) on the bottom.
With the completion of the service module, two thirds of the Orion EFT-1 mission stack are now compete.
LAS assembly was finalized in December.
The crew module is in the final stages of construction and completion is due by early spring.
Orion is being manufactured at NASA’s Kennedy Space Center (KSC) inside a specially renovated high bay in the Operations and Checkout Building (O&C).
“We are making steady progress towards the launch in the fall,” said NASA Administrator Charles Bolden at a media briefing back dropped by the Orion service module inside the O&C facility.
“It’s very exciting because it signals we are almost there getting back to deep space and going much more distant than where we are operating in low Earth orbit at the ISS.”
“And I’m very excited for the young people who will have an opportunity to fly Orion,” Bolden told me in the O&C.
Lockheed Martin is the prime contractor for Orion under terms of a contract from NASA.
Orion is NASA’s first spaceship designed to carry human crews on long duration flights to deep space destinations beyond low Earth orbit, such as asteroids, the Moon, Mars and beyond.
The inaugural flight of Orion on the unmanned Exploration Flight Test – 1 (EFT-1) mission is on schedule to blast off from the Florida Space Coast in mid September 2014 atop a Delta 4 Heavy booster, Scott Wilson, NASA’s Orion Manager of Production Operations at KSC, told Universe Today during a recent interview at KSC.
Orion crew capsule, Service Module and 6 ton Launch Abort System (LAS) mock up stack inside the transfer aisle of the Vehicle Assembly Building (VAB) at the Kennedy Space Center (KSC) in Florida. Service Module at bottom. Credit: Ken Kremer/kenkremer.com
Orion is currently under development as NASA’s next generation human rated vehicle to replace the now retired space shuttle.
Concurrently, NASA’s commercial crew initiative is fostering the development of commercial space taxi’s to ferry US astronauts to low Earth orbit and the International Space Station (ISS).
Get the details in my interview with SpaceX CEO Elon Musk about his firm’s Dragon ‘space taxi’ launching aboard the SpaceX upgraded Falcon 9 booster – here.
The two-orbit, four- hour EFT-1 flight will lift the Orion spacecraft and its attached second stage to an orbital altitude of 3,600 miles, about 15 times higher than the International Space Station (ISS) – and farther than any human spacecraft has journeyed in 40 years.
The crew module rests atop the service module, similar to the Apollo Moon landing program architecture.
Orion service module assembly in the Operations and Checkout facility at Kennedy Space Center. Credit: Ken Kremer/kenkremer.com
The SM provides in-space power, propulsion capability, attitude control, thermal control, water and air for the astronauts.
For the EFT-1 flight, the SM is not fully outfitted. It is a structural representation simulating the exact size and mass.
In a significant difference from Apollo, Orion is equipped with a trio of massive fairings that encase the SM and support half the weight of the crew module and the launch abort system during launch and ascent. The purpose is to improve performance by saving weight from the service module, thus maximizing the vehicles size and capability in space.
All three fairings are jettisoned at an altitude of 100 miles up when they are no longer need to support the stack.
The fairings that will protect it during launch are added to Orion’s service module at the Operations and Checkout facility at Kennedy Space Center. Credit: NASA
On the next Orion flight in 2017, the service module will be manufactured built by the European Space Agency (ESA).
“When we go to deep space we are not going alone. It will be a true international effort including the European Space Agency to build the service module,” said Bolden.
The new SM will be based on components from ESA’s Automated Transfer Vehicle (ATV) which is an unmanned resupply spacecraft used to deliver cargo to the ISS.
A key upcoming activity for the CM is installation of the thermal protection system, including the heat shield.
The heat shield is the largest one ever built. It arrived at KSC last month loaded inside NASA’s Super Guppy aircraft while I observed. Read my story – here.
The 2014 EFT-1 test flight was only enabled by the extremely busy and productive year of work in 2013 by the Orion EFT-1 team.
“There were many significant Orion assembly events ongoing on 2013” said Larry Price, Orion deputy program manager at Lockheed Martin, in an interview with Universe Today at Lockheed Martin Space Systems in Denver.
“This includes the heat shield construction and attachment, power on, installing the plumbing for the environmental and reaction control system, completely outfitting the crew module, attached the tiles and building the service module which finally leads to mating the crew and service modules (CM & SM) in early 2014,” Price told me.
Orion was originally planned to send American astronauts back to Moon – until Project Constellation was cancelled by the Obama Administration.
Now with Orion moving forward and China’s Yutu rover trundling spectacularly across the Moon, one question is which country will next land humans on the Moon – America or China?
Read my story about China’s manned Moon landing plans – here.
Stay tuned here for Ken’s continuing Orion, Chang’e-3, Orbital Sciences, SpaceX, commercial space, LADEE, Mars and more news.
Orion schematic. Credit: NASANASA Administrator Charles Bolden meets the media including Ken Kremer/Universe Today to discuss NASA’s human spaceflight initiatives and Orion crew capsule being assembled at the Kennedy Space Center. Credit: Urijan Poerink
With the Dawn spacecraft now heading towards the dwarf planet/asteroid Ceres, the mission has suddenly gotten even more intriguing. The Herschel space observatory has discovered water vapor around Ceres, and the vapor could be emanating from water plumes — much like those that are on Saturn’s moon Enceladus – or it could be from cryovolcanism from geysers or icy volcano.
“This is the first time water vapor has been unequivocally detected on Ceres or any other object in the asteroid belt and provides proof that Ceres has an icy surface and an atmosphere,” said Michael Küppers of ESA in Spain, lead author of a paper in the journal Nature.
Ceres might be considered to have a bit of an identity crisis, and this new discovery might complicate things even more. When it was discovered in 1801, astronomers thought it was a planet orbiting between Mars and Jupiter. Later, other bodies with similar orbits were found, marking the discovery of our Solar System’s main belt of asteroids.
Ceres laid claim as the largest asteroid in our Solar System, but in 2006, the International Astronomical Union reclassified Ceres as a dwarf planet because of its large size.
But now, could Ceres also have comet-like attributes? Herschel scientists say the most straightforward explanation of the water vapor production is through sublimation, where ice is warmed and transformed directly into gas, dragging the surface dust with it, and exposing fresh ice underneath to sustain the process. This is how comets work.
Ceres is roughly 950 kilometers (590 miles) in diameter. The best guess on Ceres composition is that it is layered, perhaps with a rocky core and an icy outer mantle. Ice had been theorized to exist on Ceres but had not been detected conclusively, until now.
This graph shows variability in the intensity of the water absorption signal detected at Ceres by the Herschel space observatory on March 6, 2013. Credit: ESA.
Herschel used its far-infrared vision with the HIFI instrument to see a clear spectral signature of the water vapor. But, interestingly, Herschel did not see water vapor every time it looked. There were variations in the water signal during the dwarf planet’s 9-hour rotation period. The telescope spied water vapor four different times, on one occasion there was no signature. The astronomers deduced that almost all of the water vapor was seen to be coming from just two spots on the surface.
Although Herschel was not able to make a resolved image of Ceres, the team was able to derive the distribution of water sources on the surface.
“We estimate that approximately 6 kg of water vapour is being produced per second, requiring only a tiny fraction of Ceres to be covered by water ice, which links nicely to the two localised surface features we have observed,” says Laurence O’Rourke, Principal Investigator for the Herschel asteroid and comet observation programme called MACH-11, and second author on the paper.
The two emitting regions are about 5% darker than the average on Ceres. Since darker regions are able to absorb more sunlight, they are then likely the warmest regions, resulting in a more efficient sublimation of small reservoirs of water ice, the team said.
They added that this new finding could have significant implications for our understanding of the evolution of the Solar System.
“Herschel’s discovery of water vapour outgassing from Ceres gives us new information on how water is distributed in the Solar System,” said Göran Pilbratt, ESA’s Herschel Project Scientist. “Since Ceres constitutes about one fifth of the total mass of asteroid belt, this finding is important not only for the study of small Solar System bodies in general, but also for learning more about the origin of water on Earth.”
Dawn is scheduled to arrive at Ceres in the spring of 2015 after spending more than a year orbiting the large asteroid Vesta. Dawn will give us the closest look ever at Ceres surface and provide more insight into this latest finding.
“We’ve got a spacecraft on the way to Ceres, so we don’t have to wait long before getting more context on this intriguing result, right from the source itself,” said Carol Raymond, the deputy principal investigator for Dawn. “Dawn will map the geology and chemistry of the surface in high resolution, revealing the processes that drive the outgassing activity.”
Before and after photos of the bright galaxy M81 showing the appearance of a brand new supernova. The object is located 54" west and 21" south of the galaxy's center. Credit: E. Guido, N. Howes, M. Nicolini
Wow! Now here’s a supernova bright enough for even small telescope observers to see. And it’s in a bright galaxy in Ursa Major well placed for viewing during evening hours in the northern hemisphere. Doesn’t get much better than that! The new object was discovered last night by S.J. Fossey; news of the outburst first appeared on the Central Bureau for Astronomical Telegrams “Transient Objects Confirmation Page”
An animation showing a comparison between the confirmation image of supernova in M82 by the team from the Remanzacco Observatory and archive image by a 2-meter telescope FTN – LCOGT from November 22, 2013. Click on the image for a larger version. Credit: E. Guido, N. Howes, M. Nicolini.
Astronomers are saying this new supernova is currently at magnitude +11 to +12, so its definitely not visible with the naked eye. You’ll need a 4 inch telescope at least to be able to see it. That said, at 12 million light years away, this is (at the moment) the brightest, closest supernova since SN 1993 J kaboomed in neighboring galaxy M81 21 years ago in 1993. M81 and M82, along with NGC 3077, form a close-knit interacting group.
Another view of the galaxy M82 with the new bright supernova photographed earlier today. M82 glows at magnitude 8.4 and a popular object for telescopes of every size. Credit: Leonid Elenin
It’s amazing it wasn’t found and reported sooner (update — see below, as perhaps it was!). M82 is a popular target for beginning and amateur astronomers; pre-discovery observations show it had already brightened to magnitude 13.9 on the 16th, 13.3 on the 17th and 12.2 on the 19th. Cold winter weather and clouds to blame?
This is the starburst galaxy M82 imaged by Hubble in 2006, with approximate location of the new supernova noted. Image credit: NASA/ESA and the Hubble Heritage team, image notation by Jason Major.
M82 is a bright, striking edge-on spiral galaxy bright enough to see in binoculars. Known as the Cigar or Starburst Galaxy because of its shape and a large, active starburst region in its core, it’s only 12 million light years from Earth and home to two previous supernovae in 2004 and 2008. Neither of those came anywhere close to the being as bright as the discovery, and it’s very possible the new object will become brighter yet.
Evolution of a Type Ia supernova. A superdense white dwarf star draws matter from a companion star, reaches a critical limit and then burns catastrophically. Credit: NASA/CXC/M. Weiss
PSN J09554214+6940260 is a Type Ia supernova. Type Ia (one-a), a dry term describing one of the most catastrophic events in the universe. Here a superdense white dwarf, a star only about the size of Earth but with the gravitational power of a sun-size star, pulls hydrogen gas from a nearby companion down to its surface where it adds to the star’s weight.
When the dwarf packs enough pounds to reach a mass 1.4 times that of the sun, it can no longer support itself. The star suddenly collapses, heats to incredible temperatures and burns up explosively in a runaway fusion reaction. What we see here on Earth is the sudden appearance of a brand new star within the galaxy’s disk. Of course, it’s not really a new star, but rather the end of an aged one.
This map shows the sky facing north-northeast at 8 p.m. local time in late January. The supernova is located about a “fist” above the Dipper Bowl in M82. Right next door is the equally bright M81 galaxy. It’s easy to tell them apart. M81 is round with a bright core; M82 looks like a streak mark. See detailed map below. Stellarium
I know you’re as excited as I am to get a look at this spectacular new star the next clear night, so I’ve prepared a couple maps to help you find the galaxy. The best time to see the supernova is as soon as the sky gets dark when it’s already up in the northeastern sky above the Dipper Bowl, but since it’s circumpolar for mid-latitude observers, you can check it out any time of night.
To find M82, look about 7 degrees (not quite a fist held at arm’s length) above the Bowl to find 23 UMa, an easy naked eye star. From there you can star hop to a little triangle and over to a pair of stars (the “line”). M82 and M81 are about half a degree below the line. Stellarium
My maps show its position for around 8 o’clock. When you dial in the galaxy in your telescope, look for a starry point along its long axis west and south of the nucleus. All the fury of this fantastic blast is concentrated in that meek spark of light glimmering in the galactic haze.
UPDATE: Sketch of M82 and its supernova, now designated SN 2014J, made at 9 p.m. CST Jan. 22 with a 15-inch (37 cm) telescope. A perfect arc of 3 stars (left) takes you right to it. The object is the only bright star shining in the galaxy. Amazingly easy to see. Numbers shown are magnitudes from the AAVSO – use them to help you gauge 2014J’s brightness changes. Credit: Bob King
UPDATE: Fraser and team from the Virtual Star Party actually imaged M82 on Sunday evening, and you can see it in the video below at the 22 minute mark. It really looks like a bright spot is showing up — and that’s about a day before it was announced. Did they catch it? In the video the galaxy appears upside down as compared to the images here:
Screenshot from the January 19 Virtual Star Party (right) compared to image from Meineko Sakura of the Tao Astronomical Observatory of the new supernova.
This time-lapse color panorama from China’s Chang’e-3 lander shows the Yutu rover at two different positions during its trek over the Moon’s surface at its landing site from Dec. 15-18, 2013. This view was taken from the 360-degree panorama. Credit: CNSA/Chinanews/Ken Kremer/Marco Di Lorenzo. See our complete Yutu timelapse pano at NASA APOD Feb. 3, 2014: http://apod.nasa.gov/apod/ap140203.htm
This time-lapse color panorama from China’s Chang’e-3 lander shows the Yutu rover at two different positions during its trek over the Moon’s surface at its landing site from Dec. 15-18, 2013. This view was taken from a 360-degree panorama – see below.
Credit: CNSA/Chinanews/Ken Kremer/Marco Di Lorenzo
Story updated This mosaic was selected as Astronomy Picture of the Day (APOD) on Feb. 3, 2014
http://apod.nasa.gov/apod/ap140203.html[/caption]
A new time-lapse photomosaic shows China’sYutu rover dramatically trundling across the Moon’s stark gray terrain in the first week after she rolled all six wheels onto the desolate lunar plains.
Our complete time-lapse mosaic (see below) shows Yutu at three different positions trekking around the landing site, and gives a real sense of how it is maneuvering around – on the 1st Lunar Day.
The 360-degree panoramic mosaic was created from images captured by the color camera aboard China’s Chang’e-3 lander, the country’s first spacecraft to successfully soft land on the Moon.
The time-lapse mosaic was stitched together by the imaging team of scientists Ken Kremer and Marco Di Lorenzo using images just released on a Chinese language website.
We integrated the wide screen panorama with additional images of Yutu taken by the lander as she roved around the right side of the mothership during her 1st Lunar Day – to create the new time-lapse panorama.
To me the moonscape is rather reminiscent of the scenery from NASA’s manned Apollo lunar landing missions which took place over 4 decades ago – from 1969 to 1972.
360-degree time-lapse color panorama from China’s Chang’e-3 lander This 360-degree time-lapse color panorama from China’s Chang’e-3 lander shows the Yutu rover at three different positions during its trek over the Moon’s surface at its landing site from Dec. 15-22, 2013 during the 1st Lunar Day. Credit: CNSA/Chinanews/Ken Kremer/Marco Di Lorenzo – kenkremer.com
Our time-lapse Yutu mosaic was initially featured at NBC News by Alan Boyle – here.
Here’s the original 360 degree panorama:
1st 360 Degree Color Panorama from China’s Chang’e-3 Lunar Lander. This 1st color panorama from Chang’e-3 lander shows the view all around the landing site after the ‘Yutu’ lunar rover left impressive tracks behind when it initially rolled all six wheels onto the pockmarked and gray lunar terrain on Dec. 15, 2013. Mosaic Credit: CNSA/Chinanews/Ken Kremer/Marco Di Lorenzo – kenkremer.com
The first portrait of Yutu was taken shortly after it first drove off the 1200 kg Chang’e-3 lander on Dec. 15. The last Yutu position shows her heading off to the south and departing the landing site forever.
She’s not ever coming back to see the stationary lander again, according to China’s Chang’e-3 mission team.
Yutu, which translates as ‘Jade Rabbit’, is on her own from now on.
This composite view shows China’s Yutu rover heading south and away forever from the Chang’e-3 landing site about a week after the Dec. 14, 2013 touchdown at Mare Imbrium. This cropped view was taken from the 360-degree panorama. See complete 360 degree landing site panorama herein. Chang’e-3 landers extreme ultraviolet (EUV) camera is at right, antenna at left. Credit: CNSA/Chinanews/Ken Kremer/Marco Di Lorenzo – kenkremer.com
Chang’e-3 safely touched down on the Moon at Mare Imbrium near the Bay of Rainbows on Dec. 14, 2013.
Seven hours later, the piggybacked 140 kg Yutu robot drove off a pair of ramps, onto the Moon and into the history books.
Here is the initial black and white panoramic version from the Chang’e-3 navigation camera – which we assembled from screenshots taken as it was twirling about in a CCTV news video report.
1st panorama around Chang’e-3 landing site after China’s Yutu rover drove onto the Moon’s surface on Dec. 15, 2013. The images were taken by Chang’e-3 lander following Dec. 14 touchdown. Panoramic view was created from screen shots of a news video assembled into a mosaic. Credit: CNSA/CCTV/screenshot mosaics & processing by Marco Di Lorenzo/Ken Kremer
The Chang’e-3 mothership and Yutu rover are now working during their 2nd Lunar Day, having survived the harsh extremes of their 1st Lunar Night when temperatures plummeted to below minus 180 degrees Celsius, or minus 292 degrees Fahrenheit.
They have resumed full operation and are conducting research investigations. Each is equipped with four science instruments.
All the equipment is functioning well except alas for the color camera used to snap the images for the photomosaics herein.
Photo of Chang’e-3 moon lander emblazoned with Chinese national flag taken by the panoramic camera on the Yutu moon rover on Dec. 22, 2013. Credit: CNSA
China’s official Xinhua new agency reports that the instruments aboard the lander and rover have each collected a large amount of data about the Moon, Earth and celestial objects.
Scientists have created a star atlas around the constellation Draco and used the ground penetrating radar to survey the moon’s subsurface and soil structure to depths of 10 to 140 meters.
Meanwhile as China’s Yutu rover trundles across pitted moonscapes, NASA’s Opportunity rover is in the midst of Martian mountaineering at the start of Decade 2 on the Red Planet and younger sister Curiosity is speeding towards the sedimentary layers of Mount Sharp.
Stay tuned here for Ken’s continuing Chang’e-3, Orbital Sciences, SpaceX, commercial space, LADEE, Mars and more news.
