Webcast: “Stellar Explosions and Death Dances”

When stars die, their final gasps can trigger the most powerful blasts of energy in the universe. Their demise can also lead to a bizarre death dance as the voracious corpse of a dead star begins consuming a nearby companion.

Today (Feb. 5) you can watch a live webcast (or watch the replay later) to learn about the recent detection of a dying star igniting the most powerful blast ever seen – something so powerful it radiated energy that was nearly 50 billion times that of visible light. Also learn how scientists have discovered that a familiar sight in the skies is actually our earliest view yet of a star being consumed by the remnant of a nearby exploded star.

The webcast starts at 19:00 UTC (3 pm EDT, Noon PDT). You can watch below. To submit questions ahead of time or during the webcast, send an email to [email protected] or post on Twitter with hashtag #KavliLive. You can find additional information from the Kavli Foundation here.

Watch Today’s Progress Launch and Docking Live

The Soyuz-U rocket sits ready for launch at the baikonur Cosmodrome earlier today. Credit: The Russian Space Agency.

Live streaming video by Ustream
The first launch of February 2014 worldwide is about to light up the night skies over the Baikonur Cosmodrome in Kazakhstan, with the launch of a Soyuz-U rocket carrying the uncrewed Progress M-22M spacecraft to the ISS. You can watch the launch live here, as well as the “fast-track” docking just 5 hours and 58 minutes later.

Progress will be carrying 2.8 tons of fuel, oxygen, supplies and experiments to the International Space Station. This will be the 54th Progress flight to the International Space Station since the first Progress launch to the station in 2000.

The launch is set to occur at 16:23:33 Universal Time or 11:23:33 AM EST. NASA TV will go live with the launch at 11:00 AM EST/16:00 UT, and TV Tsenki will also broadcast video from the pad just prior, though the broadcast frequently its sans audio.

Progress is also on a four orbit “fast-track” launch headed to the International Space Station. Tune in to NASA TV at 5:00 PM EST/22:00 UT later today, and you’ll be able to catch the docking of the Progress spacecraft to the Pirs module of the ISS as well. Docking is set to occur at 5:25 PM EST/22:25 UT over the North Atlantic Ocean.

Fun fact: Neil Armstrong still holds the record for the fastest journey from liftoff to docking at 5 hours and 33 minutes during Gemini 8 way back in 1966.

Update: ISS Astros indeed report during the live broadcast of the launch of Progress M-22M on NASA TV today of catching sight of the first stage of the Soyuz-U at liftoff… we’ll post any pics if and when they surface.

Progress M-20M undocked from the same Pirs compartment earlier this week on Monday in order to make way for the arrival of Progress M-22M. Progress M-20M is still in orbit, and is slated for a fiery destructive reentry on February 11th over the South Pacific. The long span between undocking and reentry for Progress M-20M allows for experiments on the spacecraft’s attitude control system to be carried out by ground controllers.

...and LIFTOFF of the Soyuz-U rocket from the Baikonur Cosmodrome with Progress M-22M! Credit: NASA TV.
…and LIFTOFF of the Soyuz-U rocket from the Baikonur Cosmodrome with Progress M-22M! Credit: NASA TV.

This also marks the start of a busy 2014 season at the International Space Station. On March 1st, SpaceX continues its contract to resupply the station with the launch of a Falcon 9 rocket with its fifth Dragon capsule making its third operational delivery to the station on CRS-3. Then later in March on the 12th, Expedition 38 crewmembers Oleg Kotov, Sergey Ryazansky, and NASA astronaut Michael Hopkins will return to Earth aboard Soyuz TMA-10M. The next crewed launch headed to the International Space Station are Expedition 39 cosmonauts Alexander Skvortsov, Oleg Artemyev, and NASA astronaut Steve Swanson launching from Baikonur on March 26th on Soyuz TMA-12M.

Progress M-22M is ultimately slated to undock from the Pirs module of the International Space Station on April 7th for a destructive reentry over the South Pacific.  Three additional SpaceX launches utilizing Dragon capsules and two more launches of Orbital Science’s Cygnus cargo spacecraft will be conducted in 2014, as well as visits by the European Space Agency’s ATV-5 Georges Lemaitre in June and JAXA’s HTV-5 in July.

And another launch from the Baikonur Cosmodrome is coming right up on Valentine’s Day, February 14th, with the liftoff of an International Launch Services Proton rocket carrying the Turksat 4A satellite. The launch will be carried live via the ILS website and is slated for 21:09 UT/4:09 PM EST.

And though these are all standard resupply missions to the International Space Station, spaceflight is anything but routine. Avid trackers of live launches will remember the Progress M-12M spacecraft that was lost shortly after launch back in August 2011. To date, Progress M-12M was the only supply craft that failed to reach the International Space Station. Progress M-12M impacted in the Choisk Region of Russia’s Altai Republic in the Far East. The RD-0110 engine began to experience a flight anomaly just over five minutes after launch, causing the flight computer to execute a termination of thrust. Progress M-12M was the first loss of a Progress spacecraft since the start of the program in 1978. Ironically, Progress M-12M carried among its cargo manifest 10 paintings made by the son of Russian artist Alesandr Shilov said to be for “the psychological support of the crew…” There’s also a small cottage industry in Siberia east of Russian launch sites in salvaging rocket parts and boosters for scrap metal as they plummet from the sky.

Tonight's passage of Progress M-20M and the International Space Station over the US SE and the Caribbean region. Created by the author using Orbitron.
Tonight’s passage of Progress M-20M and the International Space Station over the US SE and the Caribbean region. Created by the author using Orbitron.

It’s also possible to spot these spacecraft from your backyard as they arrive and depart from the International Space Station. We caught sight of Progress M-20M just last night, passing very near the waxing crescent Moon. Progress was about magnitude +1 when directly overhead, and was about 9 minutes ahead of the International Space Station. We’ve seen the Dragon, HTV, ATV spacecraft, as well as the U.S. Space Shuttle shortly after undocking from the International Space Station when it was in service. In fact, there’s a series of good passes of the ISS at dusk over the next few evenings for the southeastern United States, including a pass at ~6:58 PM EST tonight. Progress M-20M should be about 20 minutes ahead of the station at this point, assuming, of course, it hasn’t maneuvered in its orbit as a part of ongoing thruster control experiments.

We’ll be checking those final orbital corrections just prior to the pass tonight, as well as tracking the launch and docking of Progress M-22M. Follow us on Twitter (@Astroguyz) for further updates.

Be sure to catch all the action at Baikonur and in low Earth orbit today, both online and overhead!

Watch Live Webcast of the Active Sun

A closeup look at sunspot AR1944 on January 6, 2013, comparing its size to Earth. Credit and copyright: Ron Cottrell.

The team from Slooh will broadcast a live Solar special focusing on the sudden emergence of hyperactivity on the Sun — lately attributed sunspot AR 1944. Right now, the Sun is in what is supposed to be the active phase of its 11-year solar cycle, Solar Cycle 24. While this has been an unusually quiet solar maximum, lately the Sun has been more active.

The broadcast will feature live feeds of the Sun from the Prescott Observatory run by Matt Francis and Slooh astronomer Bob Berman. They will provide live expert commentary during the 30 minute broadcast. The Solar Special will start at 10:00 AM PST/ 1:00 PM EST/ 18:00 UTC on Wednesday, January 15th.

You can watch live, below, or the replay if you missed it live:

Cygnus Commercial Carrier Hurtling towards Space Station Rendezvous Following Spectacular Antares Blastoff – Photo & Video Gallery

Antares rocket blastoff on Jan. 9 from Launch Pad 0A at NASA Wallops Flight Facility, VA lofting the Cygnus resupply vehicle on a mission for NASA bound for the International Space Station. Docking at ISS planned for Jan. 9. Both vehicles built by Orbital Sciences. Photo taken by remote camera at launch pad. Credit: Alan Walters/AmericaSpace/awaltersphoto.com

Antares rocket blastoff on Jan. 9 from Launch Pad 0A at NASA Wallops Flight Facility, VA lofting the Cygnus resupply vehicle on a mission for NASA bound for the International Space Station. Docking at ISS planned for Jan. 12. Both vehicles built by Orbital Sciences. Photo taken by remote camera at launch pad. Credit: Alan Walters/AmericaSpace/awaltersphoto.com
See Photo Gallery below
Story updated[/caption]

WALLOPS ISLAND, VA – The Cygnus commercial resupply freighter is hurtling towards the International Space Station (ISS) at 17,500 MPH following the flawless Jan. 9 blastoff from NASA Wallops Island, Va., atop the Orbital Sciences Corp. Antares rocket.

Cygnus is bound for the ISS on its historic first operational mission to deliver over 1.5 tons of science experiments, provisions and belated Christmas presents to the six man crew aboard the massive orbiting outpost, under Orbital Science’s $1.9 Billion resupply contract with NASA.

See our up close photo and video gallery of the spectacular Jan 9. Launch – above and below.

The privately built Cygnus cargo vessel is in the midst of a two and a half day high speed orbital chase and is scheduled to rendezvous and dock with the station early Sunday morning, Jan 12.

The Orbital-1 ship is named the “SS C. Gordon Fullerton” in honor of NASA space shuttle astronaut C. Gordon Fullerton who later worked at Orbital Sciences and passed away in 2013.

The imagery was shot by remote cameras set up all around the NASA Wallops Launch Pad 0A as well as from the media viewing site some 2 miles away.

Orbital Sciences Antares rocket blasts off on Jan. 9, 2014 from NASA Wallops on Virginia coast on the Orb-1 mission bound for ISS.  Photo taken by remote camera at launch pad. Credit: Alan Walters/AmericaSpace/awaltersphoto.com
Orbital Sciences Antares rocket blasts off on Jan. 9, 2014 from NASA Wallops on Virginia coast on the Orb-1 mission bound for ISS. Photo taken by remote camera at launch pad. Credit: Alan Walters/AmericaSpace/awaltersphoto.com

Currently, the Cygnus spacecraft is barely 12 hours from its carefully choreographed arrival at the station on Sunday morning.

NASA TV will provide live coverage starting at 5 a.m. EST Sunday – http://www.nasa.gov/multimedia/nasatv/

Orbital Sciences’ first dedicated Cygnus mission gets underway at 1:07 p.m. EST, Thursday, 9 January, with the launch of Antares from Pad 0A at the Mid-Atlantic Regional Spaceport (MARS) on Wallops Island, Va. Credit: Mike Killian/mikekillianphotography.com
Orbital Sciences’ first dedicated Cygnus mission gets underway at 1:07 p.m. EST, Thursday, 9 January, with the launch of Antares from Pad 0A at the Mid-Atlantic Regional Spaceport (MARS) on Wallops Island, Va. Credit: Mike Killian/mikekillianphotography.com/AmericaSpace

“All Cygnus systems are performing as expected with no issues,” said Orbital Sciences in an update.

“The spacecraft has conducted five orbit-raising maneuvers and is on track for rendezvous with the International Space Station tomorrow morning [Sunday, Jan. 12].”

“Cygnus will maneuver to a distance of about 30 feet from the station,” said Frank Culbertson, executive vice president and general manager of Orbital’s advanced spaceflight programs group, and former Space Shuttle commander.

The third Antares rocket springs away from Pad 0A on a mission which firmly establishes Orbital Sciences Corp. as one of NASA’s Commercial Resupply Services (CRS) suppliers.   Credit: Mike Killian/mikekillianphotography.com
The third Antares rocket springs away from Pad 0A on a mission which firmly establishes Orbital Sciences Corp. as one of NASA’s Commercial Resupply Services (CRS) suppliers. Credit: Mike Killian/mikekillianphotography.com/AmericaSpace

The goal of Orbital Sciences Cygnus – and the Space X Dragon – is to restore America’s cargo delivery capabilities to low Earth orbit and the ISS that was totally lost following the forced retirement of NASA’s Space Shuttles, by utilizing new and privately developed resupply freighters that will cuts costs.

Cygnus is packed with 2,780 pounds (1261 kg) of station supplies and vital research experiments.

Cygnus pressurized cargo module - side view - during prelaunch processing by Orbital Sciences at NASA Wallops, VA.  Credit: Ken Kremer - kenkremer.com
This Cygnus is streaking to the ISS and docks on Jan. 12
Cygnus pressurized cargo module – side view – during prelaunch processing by Orbital Sciences at NASA Wallops, VA. Docking mechanism to ISS at right. Credit: Ken Kremer – kenkremer.com

Expedition 38 crew members Engineers Mike Hopkins and Koichi Wakata aboard the station will reach out and with the stations 57 foot long Canadarm2 and grapple Cygnus with the robotic arm on Sunday at 6:02 a.m. EDT.

Hopkins and Wakata will then carefully maneuver the robot arm and guide Cygnus to its berthing port on the Earth-facing side of the Harmony node.

The installation begins around 7:20 a.m. EDT. And NASA TV will provide continuous live coverage of Cygnus rendezvous, docking and berthing operations.

Billowing smoke and flame in all directions, ORB-1 takes flight on Jan. 9, 2014. Credit: Mike Killian/mikekillianphotography.com
Billowing smoke and flame in all directions, ORB-1 takes flight on Jan. 9, 2014. Credit: Mike Killian/mikekillianphotography.com

The majestic blastoff of Orbital Science’s two stage Antares rocket took place from a beachside pad at NASA’s Wallop’s Flight Facility along the eastern shore of Virginia, Thursday, at 1:07 p.m. EST.

The station was flying about 260 miles over the Atlantic Ocean just off the coast of Brazil as Antares soared aloft.

Following the 10 minute ascent to orbit, Cygnus separated as planned from the ATK built upper stage about 30 minutes after launch. The Ukrainian supplied first stage fired for approximately four and one half minutes

The solar arrays deployed as planned once Cygnus was in Earth orbit to provide life giving energy required to command the spacecraft.

The picture perfect launch of the 133 foot tall Antares put on a spectacular sky show following a trio of delays since mid- December 2013.

The first postponement was forced when spacewalking astronauts were called on to conduct urgent repairs to fix an unexpected malfunction in the critical cooling system on board the station.

Then, unprecedented frigid weather caused by the ‘polar vortex’ forced a one day from Jan. 7 to Jan. 8.

Finally, an unexpected blast of solar radiation from the Earth’s Sun on Tuesday (Jan. 7) caused another 24 postponement because the highly energetic solar particles could have fried the delicate electronics controlling the rockets ascent with disastrous consequences.

Cygnus is loaded with science experiments, computer supplies, spacewalk tools, food, water, clothing and experimental hardware.

“The crew will unload Cygnus starting probably the next day after it docks at station,” said Culbertson.

Among the research items packed aboard the Cygnus flight are an experiment to study the effectiveness of antibiotics in space and a batch of 23 student experiments involving life sciences topics ranging from amoeba reproduction to calcium in the bones to salamanders.

The student experiments selected are from 6 middle school and high school teams from Michigan, Texas, Colorado, and Washington, DC.

Watch for my ongoing Antares/Cygnus reports.

Stay tuned here for Ken’s continuing Orbital Sciences, SpaceX, commercial space, Chang’e-3, LADEE, Mars and more news.

Ken Kremer

Antares soars to space on Jan. 9, 2014 from NASA Wallops on Virginia coast on the Orb-1 mission to the ISS.  Photo taken by remote camera at launch pad. Credit: Ken Kremer - kenkremer.com
Antares soars to space on Jan. 9, 2014 from NASA Wallops on Virginia coast on the Orb-1 mission to the ISS. Photo taken by remote camera at launch pad. Credit: Ken Kremer – kenkremer.com
Birds take flight as Antares lifts off for Space Station from Virginia Blastoff of Antares commercial rocket built by Orbital Sciences on Jan. 9, 2014 from Launch Pad 0A at NASA Wallops Flight Facility, VA on a mission for NASA bound for the International Space Station and loaded with science experiments. Credit: Ken Kremer – kenkremer.com
Birds take flight as Antares lifts off for Space Station from Virginia Blastoff of Antares commercial rocket built by Orbital Sciences on Jan. 9, 2014 from Launch Pad 0A at NASA Wallops Flight Facility, VA on a mission for NASA bound for the International Space Station and loaded with science experiments.
Credit: Ken Kremer – kenkremer.com
Antares soars aloft on Jan. 9, 2014 from NASA Wallops.  Credit: Elliot Severn/SpaceFlight Insider
Antares soars aloft on Jan. 9, 2014 from NASA Wallops. Credit: Elliot Severn/SpaceFlight Insider
Antares soars from NASA Wallops. Credit: Mike Killian/mikekillianphotography.com/AmericaSpace
Antares soars from NASA Wallops. Credit: Mike Killian/mikekillianphotography.com/AmericaSpace
Antares rocket the night before launch beautifully reflected in icy water at NASA Wallops launch pad amidst bone chilling cold during remote camera setup for the photos featured herein.  Credit: Ken Kremer - kenkremer.com
Antares rocket the night before launch beautifully reflected in icy water at NASA Wallops launch pad amidst bone chilling cold during remote camera setup for the photos featured herein. Credit: Ken Kremer – kenkremer.com
Space journalists Ken Kremer/Universe Today (left) and Mike Killian  and Alan Walters  of AmericaSpace (center, right) setting remote cameras at Antares launch pad amidst bone chilling cold for the photos featured herein.  Credit: Ken Kremer - kenkremer.com
Space journalists Ken Kremer/Universe Today (left) and Mike Killian and Alan Walters of AmericaSpace (center, right) setting remote cameras at Antares launch pad amidst bone chilling cold for the photos featured herein. Credit: Ken Kremer – kenkremer.com

NASA Antares Jan. 9, 2014 Launch Video



Video caption: U.S. Cargo Ship Launches to ISS on First Resupply Mission from NASA Wallops

All is GO for SpaceX Thanksgiving Day Launch that could ‘Rock’ Space Industry – Live Webcast

SpaceX Falcon 9 rocket with SES-8 communications satellite awaits launch from Pad 40 at Cape Canaveral, FL, file photo. Credit: Ken Kremer/kenkremer.com

UPDATE: The launch was scrubbed one second before liftoff at 5:39 p.m. EST Thursday. Computers sensed the Falcon 9’s rocket thrust was building up too slowly. No new launch date was immediately set.

CAPE CANAVERAL, FL – All Systems are “GO” for today’s Thanksgiving Day blastoff of the upgraded SpaceX Falcon 9 rocket that could quite literally ‘rock the space industry to its core’ – If all goes well.

Following Monday’s (Nov. 25) scrub during to a series of technical glitches, the rocket, launch pad systems and weather are all cooperating and ready to support the maiden blastoff of the next generation Falcon 9 rocket from Launch Complex 40 at 5:39 p.m. EST.

SpaceX is offering a live webcast of today’s ‘Spacegiving Day’ launch – as they’ve dubbed it.

The live broadcast of the Falcon 9 liftoff from pad 40 on Cape Canaveral Air Force Station, FL begins at 5 p.m. EST and can be viewed here: www.spacex.com/webcast.

The show will feature commentary about the Falcon 9 rocket and launch sequences and the SES-8 commercial satellite from SpaceX corporate headquarters in Hawthorne, CA.

The Falcon 9/SES-8 launch window extends for 65 minutes.

Next Generation SpaceX Falcon 9 rocket with SES-8 communications satellite awaits launch from Pad 40 at Cape Canaveral, FL. Credit: Ken Kremer/kenkremer.com
Next Generation SpaceX Falcon 9 rocket with SES-8 communications satellite awaits launch from Pad 40 at Cape Canaveral, FL. Credit: Ken Kremer/kenkremer.com

Today’s (Nov. 28) inaugural launch of the privately developed Falcon 9 rocket with the commercial SES-8 HDTV and telecommunications satellite is especially noteworthy because it also features SpaceX’s first ever launch of any satellite to a Geostationary Transfer Orbit (GTO).

The 3,138 kg (6,918 lbs) SES-8 satellite is a hybrid Ku- and Ka-band spacecraft that will provide TV and communications coverage for the South Asia and Asia Pacific regions.

The Falcon 9 liftoff was postponed to Thanksgiving Day because the FAA did not grant SpaceX a launch permit on Tuesday and Wednesday out of concern it would have significantly impacted allowable flight paths for commercial airliners on two of the busiest travel days of the year, said SpaceX CEO Elon Musk at a media briefing.

SpaceX founder and CEO Elon Musk briefs reporters including Universe Today on Sunday (Nov. 24) in Cocoa Beach, FL prior to planned SpaceX Falcon 9 rocket blastoff with SES-8 communications satellite set for Nov. 25, 2013 from Cape Canaveral, FL. Credit: Ken Kremer/kenkremer.com
SpaceX founder and CEO Elon Musk briefs reporters including Universe Today on Sunday (Nov. 24) in Cocoa Beach, FL prior to planned SpaceX Falcon 9 rocket blastoff with SES-8 communications satellite set for Nov. 28, 2013 from Cape Canaveral, FL. Credit: Ken Kremer/kenkremer.com

The weather forecast currently shows a 90% chance of favorable conditions at liftoff time according to Air Force meteorologists. The only concern is for winds.

The last time a rocket launched on Thanksgiving Day from Cape Canaveral was back in 1959. It involved an Atlas Able rocket with the Pioneer P-3 lunar probe and failed.

Stay tuned here for continuing SpaceX & MAVEN news and Ken’s SpaceX launch reports from on site at Cape Canaveral & the Kennedy Space Center press site.

Ken Kremer

…………….

Learn more about SpaceX, MAVEN, MOM, Mars rovers, Orion and more at Ken’s upcoming presentations

Nov 28: “SpaceX launch, MAVEN Mars Launch and Curiosity Explores Mars, Orion and NASA’s Future”, Kennedy Space Center Quality Inn, Titusville, FL, 8 PM

Dec 11: “Curiosity, MAVEN and the Search for Life on Mars”, “LADEE & Antares ISS Launches from Virginia”, Rittenhouse Astronomical Society, Franklin Institute, Phila, PA, 8 PM

ISON Watch: A Post-Perihelion Viewing Guide

ISON: A 2013 pre-perihelion portrait. (Credit and copyright: Efrain Morales/Jaicoa observatory. Used with permission).

“ISON Lives!!!”

“ISON R.I.P…”

Those are just some of the possible headlines that we’ve wrestled with this week, as Comet C/2012 S1 ISON approaches perihelion tomorrow evening. It’s been a rollercoaster ride of a week, and this sungrazing comet promises to keep us guessing right up until the very end.

Comet ISON reaches perihelion on U.S. Thanksgiving Day Thursday, November 28th at around 18:44 Universal Time/ 1:44 PM Eastern Standard Time. ISON will pass 1.2 million kilometres from the surface of the Sun, just over eight times farther than Comet C/2011 W3 Lovejoy did in 2011, and about 38 times closer to the Sun than Mercury reaches at perihelion.

Comet ISON as seen from Ottawa, Canada on the morning of November 20th. (Credit: Andrew Symes/@FailedProtostar).
Comet ISON as seen from Ottawa, Canada on the morning of November 20th. (Credit: Andrew Symes/@FailedProtostar).

Earth-based observers essentially lost sight of ISON in the dawn twilight this past weekend, and there were fears that the comet might’ve disintegrated all together as it was tracked by NASA’s STEREO spacecraft. Troubling reports circulated early this week that emission rates for the comet had dropped while dust production had risen, possibly signaling that  fragmentation of the nucleus was imminent. Certainly, this comet is full of surprises, and our observational experience with large sungrazing comets of this sort is pretty meager.

Credit: SOHO
ISON (entering frame, to the right) currently “photobombing” SOHO’s LASCO C3 camera. Credit: NASA/ESA/SOHO.

However, as ISON entered the field of view of the Solar and Heliospheric Observatory’s LASCO C3 camera earlier today it still appeared to have some game left in it. NASA’s Solar Dynamics Observatory will pick up ISON starting at around 17:09UT/12:09 PM EST tomorrow, and track it through its history-making perihelion passage for just over two hours until 19:09UT/2:19PM EST.

And just as with Comet Lovejoy a few years ago, all eyes will be glued to the webcast from NASA’s Solar Dynamics Observatory as ISON rounds the bend towards its date with destiny… don’t miss it!

Note: you can also follow ISON’s current progress as seen from SOHO at their website!

The tracking plan for the Solar Dynamics Observatory on November 28th as ISON passes through perihelion. (Credit: NASA/SDO).
The tracking plan for the Solar Dynamics Observatory on November 28th as ISON passes through perihelion. (Credit: NASA/SDO).

For over the past year since its discovery, pundits have pondered what is now the astronomical question of the approaching hour: just what is ISON going to do post-perihelion? Will it dazzle or fizzle? In this context, ISON has truly become “Schrödinger’s Comet,” both alive and dead in the minds of those who would attempt to divine its fate.

Recent estimates place ISON’s nucleus at between 950 and 1,250 metres in diameter. This is well above the 200 metre size that’s considered the “point of no return” for a comet passing this close to the Sun. But again, another key factor to consider is how well put together the nucleus of the comet is: a lumpy rubble pile may not hold up against the intense heat and the gravitational tug of the Sun!

Current updated light curve for ISON. Be sure to check with NASA's Comet ISON Observing Campaign for the latest updates. (Compiled by Matthew Knight on November 24th, 2013).
Current updated light curve for ISON. Be sure to check with NASA’s Comet ISON Observing Campaign for the latest updates. (Compiled by Matthew Knight on November 24th, 2013).

But what are the current prospects for spotting ISON after its fiery perihelion passage?

If the comet holds together, reasonable estimates put its maximum brightness near perihelion at between magnitudes -3 and -5, in the range of the planet Venus at maximum brilliancy. ISON will, however, only stand 14’ arc minutes from the disk of the Sun (less than half its apparent diameter) at perihelion, and spying it will be a tough feat that should only be attempted by advanced observers.

Note that for observers based at high northern latitudes “north of the 60,” the shallow angle of the ecliptic might just make it possible to spot Comet ISON low in the dawn after perihelion and before sunrise November 29th:

ISON Perihelion 1730UT Fairbanks
ISON post-perihelion at sunrise on November 29th as seen from Fairbanks, Alaska. (Created using Starry Night Education software.

We’ve managed to see the planet Venus the day of solar conjunction during similar circumstances with the Sun just below the horizon while observing from North Pole, Alaska.

Most northern hemisphere observers may catch first sight of Comet ISON post-perihelion around the morning of December 1st. Look low to the east, about half an hour before local sunrise. Use binoculars to sweep back and forth on your morning comet dawn patrol. Note that on December 1st, Saturn, Mercury, and the slim waning crescent Moon will also perch nearby!

The morning of December 1st
Comet ISON, Mercury, Saturn and the Moon: looking east on the morning of December 1st as seen from latitude 30 degrees north. (Created using Starry Night Education software).

Comet ISON will rapidly gain elevation on successive mornings as it heads off to the northeast, but will also rapidly decrease in brightness as well. If current projections hold, ISON will dip back below magnitude 0 just a few days after perihelion, and back below naked eye visibility by late December. Observers may also be able to start picking it up low to the west at dusk by mid-December, but mornings will be your best bet.

ISON path
The path of comet ISON for the first  week of December as seen from latitude 30 degrees north. Note: the planets and the Moon are depicted for December 1st. (Created using Stellarium).

Keep in mind, if ISON fizzles, this could become a “death-watch” for the remnants of the comet, as fragments that might only be visible with binoculars or a telescope follow its outward path.  If this turns out to be the case, then the best views of the “Comet formerly known as ISON” have already occurred.

Another possible scenario is that the comet might fragment right around perihelion, leaving us with a brief but brilliant “headless comet,” similar to W3 Lovejoy back in late 2011. The forward light scattering angle for any comet is key to visibility, and in this aspect, ISON is just on the grim edge in terms of its potential to enter the annals of “great” comets, such as Comet Ikeya-Seki back in 1965.

ISON will then run nearly parallel to the 16 hour line in right ascension from south to north through the month of December as it crosses the celestial equator, headed for a date with the north celestial pole just past New Years Day, 2014.

Whether as fragments or whole, comets have to obey Sir Isaac and his laws of physics as they trace their elliptical path back out of the solar system. Keep in mind, a comet’s dust tail actually precedes it on its way outbound as the solar wind sweeps past, a counter-intuitive but neat concept we may just get to see in action soon.

Here are some key dates to watch for as ISON makes tracks across the northern hemisphere sky. Passages are noted near stars brighter than +5th magnitude and closer than one degree except as mentioned:

November 29th through December 15th.
The celestial path of ISON from November 29th to December 15th. (Credit: Starry Night).

December 1st: ISON is grouped with Saturn, Mercury and the slim crescent Moon in the dawn.

December 2nd: Passes near the +4.9 magnitude star Psi Scorpii.

December 3rd: Passes into the constellation Ophiuchus.

December 5th: Passes near the +2.7 magnitude multiple star Yed Prior.

December 6th: Crosses into the constellation Serpens Caput.

December 8th: Crosses from south to north of the celestial equator.

December 15th: Passes into the constellation Hercules and near the +5th magnitude star Kappa Herculis.

December 17th: The Moon reaches Full, marking the middle of a week with decreased visibility for the comet.

December 19th: Passes into the constellation of Corona Borealis.

December 20th: Passes near the +4.8th magnitude star Xi Coronae Borealis.

December 22nd: Passes 5 degrees from the globular cluster M13. Photo op!

Dec 16-Jan 8
The path of Comet ISON from December 16th to January 8th. (Credit: Starry Night).

December 23rd: Crosses back into the constellation Hercules.

December 24th: Passes near the +3.9 magnitude star Tau Herculis.

December 26th:  Comet ISON passes closest to Earth at 0.43 A.U. or 64 million kilometres distant, now moving with a maximum apparent motion of nearly 4 degrees a day.

December 26th: Crosses into the constellation Draco and becomes circumpolar for observers based at latitude 40 north.

December 28th: Passes the +2.7 magnitude star Aldhibain.

December 29th: Passes the +4.8 magnitude star 18 Draconis.

December 31st: Passes the 4.9 magnitude star 15 Draconis.

January 2nd: Crosses into the constellation Ursa Minor.

January 4th: Crosses briefly back into the constellation Draco.

January 6th: Crosses back into the constellation Ursa Minor.

January 7th: Crosses into Cepheus; passes within 2.5 degrees of Polaris and the North Celestial Pole.

And after what is (hopefully) a brilliant show, ISON will head back out into the depths of the solar system, perhaps never to return. Whatever the case turns out to be, observations of ISON will have produced some first-rate science… and no planets, popes or prophets will have been harmed in the process. And while those in the business of predicting doom will have moved on to the next apocalypse in 2014, the rest of us will have hopefully witnessed a dazzling spectacle from this icy Oort Cloud visitor, as we await the appearance of the next Great Comet.

Enjoy the show!

ISON: "Great Comet" or the "Great Pumpkin?" Photo and gourd-based artwork by author.
ISON: “Great Comet” or “Great Pumpkin?” Photo and gourd-based artwork by author.

– Got question about Comet ISON? Lights in the Dark has answers!

– Be sure to post those amazing post-perihelion pics of Comet ISON on Universe Today’s Flickr page.

How to Watch the Spectacular Minotaur Night Launch on Nov. 19 with Record Setting 29 Satellite Payload

Elevation viewing map for Minotaur 1 rocket launch on Nov. 19 from NASA Wallops Island facility. Credit: Orbital Sciences

Tonight, Tuesday, Nov. 19, tens of millions of residents up and down the US East coast have another opportunity to watch a spectacular night launch from NASA’s Wallops Island facility in Virginia – weather permitting.

See a collection of detailed visibility and trajectory viewing maps, as well as streaming video of the launch, courtesy of rocket provider Orbital Sciences and NASA Wallops Flight Facility.

And to top that off, the four stage Minotaur 1 rocket is jam packed with a record setting payload of 29 satellites headed for Earth orbit.

And if that’s not enough to pique your interest, the Virginia seaside launch will also feature the first cubesat built by high school students.

And viewing is open to the public.

Minotaur 1 launch trajectory map for the US Capitol, Washington, DC.  Credit: Orbital Sciences
Minotaur 1 launch trajectory map for the US Capitol, Washington, DC. Credit: Orbital Sciences

Blastoff of the Minotaur I rocket for the Department of Defense’s Operationally Responsive Space Office on the ORS-3 mission is on target for tonight, Nov. 19, from the Mid-Atlantic Regional Spaceport’s Pad-0B at NASA’s Wallops Flight Facility on the eastern shore of Virginia.

The launch window for the 70 foot tall booster opens at 7:30 pm EST and extends until 9:15 pm EST.

Minotaur 1 launch trajectory map for Rockefeller Center N.Y.C.
Minotaur 1 launch trajectory map for Rockefeller Center N.Y.C.

The ORS-3 mission is a combined US Air Force and NASA endeavor that follows the flawless Nov. 18 launch of NASA’s MAVEN Mars orbiter from Florida by just 1 day.

However the pair of East coast launch pads are separated by some 800 miles.

Minotaur 1 launch trajectory map for Charleston S.C.
Minotaur 1 launch trajectory map for Charleston S.C.

According to NASA and Orbital Sciences, the launch may be visible along a wide swatch from northern Florida to southern Canada and well into the Midwest stretching to Indiana – if the clouds are minimal and atmospheric conditions are favorable from your particular viewing site.

The primary payload is the Space Test Program Satellite-3 (STPSat-3), an Air Force technology-demonstration mission, according to NASA.

Minotaur 1 launch trajectory map for Raleigh N.C.
Minotaur 1 launch trajectory map for Raleigh N.C.

Also loaded aboard are thirteen small cubesats being provided through NASA’s Cubesat Launch Initiative, NASA said in a statement. Among the cubesats is NASA’s Small Satellite Program PhoneSat 2 second generation smartphone mission and the first ever cubesat assembled by high schooler’s.

Minotaur 1 launch trajectory map for Philadelphia P.A.
Minotaur 1 launch trajectory map for Philadelphia P.A.

Locally, the NASA Visitor Center at Wallops and the Chincoteague National Wildlife Refuge/Assateague Island National Seashore will be open for viewing the launch. Visitors to Assateague need to be on the island by 6 p.m. before the entrance gate closes.

Live coverage of the launch is available via UStream beginning at 6:30 p.m. EST on launch day. Watch below:

Ken Kremer

Watch MAVEN Launch Live!

Screenshot from NASA TV of the MAVEN launch from Cape Canaveral.



Live streaming video by Ustream

Once again, we’re heading to Mars! At 18:28 UTC (1:28 p.m. EST), NASA’s Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft launched successfully from Cape Canaveral Air Force Station in Florida, beginning its 10-month journey to Mars. Launching aboard a United Launch Alliance Atlas V rocket, MAVEN will take critical measurements of the Martian upper atmosphere to help scientists understand climate change over the Red Planet’s history.

We’ll keep the live feed from NASA TV up for a while so you can continue to watch all the post-launch action. If you want to see a replay of the launch, see the video below.

Stay tuned for more details on the launch and post-launch activities!


Watch Live: Defending Earth from Asteroids

Asteroid mining concept. Credit: NASA/Denise Watt



Live streaming video by Ustream

We know that hundreds of thousands of asteroids orbit the Sun, and a very few have a high risk of striking Earth. There are also asteroids that haven’t been discovered yet that can surprise us, as evidenced by the explosion over Chelyabinsk, Russia, last February. This event was confirmation that an asteroid strike is a risk we do face. But also, how do scientists counter the pseudo-scientific claims and fears that asteroids seem to generate? And what opportunities do asteroids provide for mining useful resources?

Watch live today (Friday, October 25, 2013) at 15:00 UTC (11 am EDT) as astrophysicist Neil deGrasse Tyson, astronauts Rusty Schweickart, Tom Jones, Ed Lu, Soichi Noguchi and others discuss the research and the steps that are being taken to avoid these potential natural disasters. With current space technology, scientists know how to deflect the majority of hazardous near-Earth objects, but these technologies have not yet been tested in space, and prevention is only possible if nations work together on detection and deflection.

This webcast is sponsored by the American Museum of Natural History. You can see their webpage about this event here.