Beam me up! This amazing image of a solar pillar was sent to us by Rick Stankiewicz of Peterborough, Ontario, Canada.
This image launches our new astrophoto of the day feature, where we will feature images taken by amateur and professional photographers, the best images from space missions and much more.
“The evening of June 10th, 2011, I was traveling west across northern Ontario on Highway #11, near the community of Hearst and it was like any other, until the Sun set and then what unfolded was like a scene from “Close Encounters of the Third Kind,” Rick wrote, telling us about this photo. “It was both eerie and beautiful. Of course it was only a harmless solar pillar, but one of the most striking and colourful that I have ever seen. The contrast with the black clouds over the western horizon added greatly to the special effect. The solar pillar was redder than I have normally seen. Usually they tend to be a yellow, orange or pink. Clearly the longer wavelengths of the spectrum were showing themselves this evening.”
Rick provided the specs of the equipment he used: Camera: Canon 400D; Lense: Canon 18-200mm @ 24 & 90mm; ISO: 200; f/5.6; 1/60-1/80
Rick is President of the Peterborough Astronomical Association
We often feature images from amateur photographers on Universe Today, and we’d like to do that more often — in fact we’d like to do it every day! To facilitate that, we’ve started a Flickr group for Universe Today, to allow people to submit their astronomy and space-related photos for us to use. If you aren’t on Flickr, you can send images to us via email. By submitting them on Flickr or sending them to us, you are giving us permission to post them here on Universe Today. When we do use an image, of course we will give the photographer full credit and link back to your Flickr page or whatever you’d like. Just let us know!
To help us out, if you could tell us a little about it – exactly what it is, when you took it, the equipment you used, and/or a little story about it — that would enable us to write a better article about your picture! (meaning, hopefully it will go viral and then you’ll be famous for your photography!)
There’s a brand new astronomy app for the iPhone, iPod Touch and iPad that provides information on what you should be able to see with different combinations of eyepieces on your telescope. AstroView displays key telescope-eyepiece performance characteristics, provides recommendations on equipment, and with the field of view display, for example, what you see on screen is what you should be able to see through your telescope. Developer George Douvos says this new app is all very intuitive, easy to read, and easy to understand.
Would you like to try a AstroView for free? Universe Today has 10 copies of this new app to give away. Just send an email to [email protected] with the word “AstroView App” in the subject line, and we’ll pick ten winners at random. The contest ends on Thursday, August 18, 2011.
Astro View supports the following gear:
* Telescopes with objective diameter from 50 mm to 610 mm, selectable in 5 mm increments (or diameters from 2 inches to 24 inches, in 1/2 inch increments), and focal ratios from f/3 to f/15.
* Eyepieces with focal lengths from 2 mm to 55 mm and apparent field of view from 30 to 110 degrees.
Thanks to George Duvous for providing us with the apps to giveaway!
PAMELA team and detector in Rome before launch. Photo courtesy of the PAMELA Experiment
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When it comes to planets with rings, we know the answer: Jupiter, Saturn, Uranus, and Neptune. But new findings from the PAMELA experiment show that Earth has a ring system, too… One made up of geomagnetically trapped cosmic ray antiprotons.
“The existence of a significant flux of antiprotons confined to Earth’s magnetosphere has been considered in several theoretical works.” says team leader, O. Adriani of the University of Florence Department of Physics. “These antiparticles are produced in nuclear interactions of energetic cosmic rays with the terrestrial atmosphere and accumulate in the geomagnetic field at altitudes of several hundred kilometers.”
The PAMELA experiment – short for Payload for Antimatter Exploration and Light-nuclei Astrophysics – is based on an international collaboration involving about 100 physicists. Its state-of-the-art equipment was designed to investigate the nature of dark matter, the apparent absence of cosmological antimatter and the origin and evolution of matter in the galaxy. Utilizing a permanent magnet spectrometer with a variety of specialized detectors, PAMELA whips around Earth on a highly inclined orbit.
“The satellite orbit (70 degree inclination and 350–610 km altitude) allows PAMELA to perform a very detailed measurement of the cosmic radiation in different regions of Earth’s magnetosphere, providing information about the nature and energy spectra of sub-cutoff particles.” says Adriani. “The satellite orbit passes through the South Atlantic Anomaly (SAA), allowing the study of geomagnetically trapped particles in the inner radiation belt.”
From its subdetectors, PAMELA dished up a serving of antiprotons, but it wasn’t an easy job. “Antiprotons in the selected energy range are likely to annihilate inside the calorimeter, thus leaving a clear signature.” says the team. “The longitudinal and transverse segmentation of the calorimeter is exploited to allow the shower development to be characterized. These selections are combined with dE/dx measurements from individual strips in the silicon detector planes to allow electromagnetic showers to be identified with very high accuracy.”
For 850 days, the detectors collected data and compared it against simulations. The trapped antiprotons were highly dependent on angular collection, directional response function on the satellite orbital position and on its orientation relative to the geomagnetic field. “All the identified antiprotons, characterized by a pitch angle near 90 deg, were found to spiral around field lines, bounce between mirror points, and also perform a slow longitudinal drift around the Earth, for a total path length amounting to several Earth radii.” said the team. “PAMELA results allow CR transport models to be tested in the terrestrial atmosphere and significantly constrain predictions from trapped antiproton models, reducing uncertainties concerning the antiproton production spectrum in Earth’s magnetosphere.”
Original Story Source: Astrophysical Journal Newsletters.
During a 2010 presentation at the China Academy of Space Technology a full-scale model of Tiangong 1 was on display.
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China’s space program is in the news again, this time with unconfirmed reports that the Tiangong 1 space lab may be launching into orbit sometime this year – possibly later this month. Previous news reports cited potential launch dates in 2010 or 2011, so this launch isn’t too far behind schedule.
What plans does China have for their first orbital space station prototype?
The space lab, named “Tiangong” translates from Mandarin Chinese into English as “Heavenly Palace”. Weighing just under 9 tons, the prototype module will orbit for two years. China will use the module to practice docking maneuvers and test orbital technologies during the module’s lifetime.
China plans to follow the Tiangong 1 orbital lab with two more lab launches over the next few years to continue testing systems and technologies before starting construction on their own space station in the 2020’s. Based on China’s current plans, the Tiangong orbital labs will not be used in the Chinese space station.
Artists rendering of a Tiangong module performing a docking procedure with a Shenzhou spacecraft. Image Credit: China Manned Space Engineering Office
Many space analysts believe China’s lack of a perceived “space race” is a potential reason for the country’s slow, methodical space program build-up. So far, China has only launched three manned space flights: Shenzhou 5 and Shenzhou 6 ( 2003 and 2005, respectively). China’s first mission to include a spacewalk was Shenzhou 7 (2008).
While China is making great strides with their manned space program, there are no current plans to include China in the ongoing International Space Station project. Despite several political and technological issues preventing China’s participation in the ISS, recent comments from officials at the China National Space Administration have indicated a willingness to allow other countries to visit the country’s space station once it is operational.
Brian Cox at CERN with Kevin Eldon and Simon Munnery. Photo by Gia Milinovich, courtesy Brian Cox
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At two separate conferences in July, particle physicists announced some provoking news about the Higgs boson, and while the Higgs has not yet been found, physicists are continuing to zero in on the elusive particle. Universe Today had the chance to talk with Professor Brian Cox about these latest findings, and he says that within six to twelve months, physicists should be able to make a definite statement about the existence of the Higgs particle. Cox is the Chair in Particle Physics at the University of Manchester, and works on the ATLAS experiment (A Toroidal LHC ApparatuS) at the Large Hadron Collider at CERN. But he’s also active in the popularization of science, specifically with his new television series and companion book, Wonders of the Universe, a follow up to the 2010 Peabody Award-winning series, Wonders of the Solar System.
Universe Today readers will have a chance to win a copy of the book, so stay tuned for more information on that. But today, enjoy the first of a three-part interview with Cox:
Universe Today: Can you tell us about your work with ATLAS and its potential for finding things like extra dimensions, the unification of forces or dark matter?
Brian Cox, during the filming of one of his television series. Image courtesy Brian Cox.
Brian Cox: The big question is the origin and mass of the universe. It is very, very important because it is not an end in itself. It is a fundamental part of Quantum Field Theory, which is our theory of three of the four forces of nature. So if you ask the question on the most basic level of how does the universe work, there are only two pillars of our understanding at the moment. There is Einstein’s Theory of General Relatively, which deals with gravity — the weakest force in the Universe that deals with the shape of space and time and all those things. But everything else – electromagnetism, the way the atomic nuclei works, the way molecules work, chemistry, all that – everything else is what’s called a Quantum Field Theory. Embedded in that is called the Standard Model of particle physics. And embedded in that is this mechanism for generating mass, and it’s just so fundamental. It’s not just kind of an interesting add-on, it’s right in the heart of the way the theory works.
So, understanding whether our current picture of the Universe is right — and if there is this thing called the Higgs mechanism or whether there is something else going on — is critical to our progress because it is built into that picture. There are hints in the data recently that maybe that mechanism is right. We have to be careful. It’s not a very scientific thing to say that we have hints. We have these thresholds for scientific discovery, and we have them for a reason, because you get these statistical flukes that appear in the data and when you get more data they go away again.
The statement from CERN now is that if they turn out to be more than just fluctuations, really, within six months we should be able to make some definite statement about the existence of the Higgs particle.
I think it is very important to emphasize that this is not just a lot of particle physicists looking for particles because that’s their job. It is the fundamental part of our understanding of three of the four forces of nature.
Brian Cox at Fermilab. Photo by Paul Olding.
UT : So these very interesting results from CERN and the Tevatron at Fermilab giving us hints about the Higgs, could you can talk little bit more about that and your take on the latest findings?
COX: The latest results were published in a set of conferences a few weeks ago and they are just under what is called the Three Sigma level. That is the way of assessing how significant the results are. The thing about all quantum theory and particle physics in general, is it is all statistical. If you do this a thousand times, then three times this should happen, and eight times that should happen. So it’s all statistics. As you know if you toss a coin, it can come up heads ten times, there is a probability for that to happen. It doesn’t mean the coin is weighted or there’s something wrong with it. That’s just how statistics is.
So there are intriguing hints that they have found something interesting. Both experiments at the Large Hadron Collider, the ATLAS and the Compact Muon Solenoid (CMS) recently reported “excess events” where there were more events than would be expected if the Higgs does not exist. It is about the right mass: we think the Higgs particle should be somewhere between about 120 and 150 gigaelectron volts [GeV—a unit of energy that is also a unit of mass, via E = mc2, where the speed of light, c, is set to a value of one] which is the expected mass range of the Higgs. These hints are around 140, so that’s good, it’s where it should be, and it is behaving in the way that it is predicted to by the theory. The theory also predicts how it should decay away, and what the probability should be, so all the data is that this is consistent with the so-called standard model Higgs.
But so far, these events are not consistently significant enough to make the call. It is important that the Tevatron has glimpsed it as well, but that has even a lower significance because that was low energy and not as many collisions there. So you’ve got to be scientific about things. There is a reason we have these barriers. These thresholds are to be cleared to claim discoveries. And we haven’t cleared it yet.
But it is fascinating. It’s the first time one of these rumors have been, you know, not just nonsense. It really is a genuine piece of exciting physics. But you have to be scientific about these things. It’s not that we know it is there and we’re just not going to announce it yet. It’s the statistics aren’t here yet to claim the discovery.
Brian Cox, while filming a BBC series in the Sahara. Image courtesy Brian Cox
UT : Well, my next question was going to be, what happens next? But maybe you can’t really answer that because all you can do is keep doing the research!
COX: The thing about the Higgs, it is so fundamentally embedded in quantum theory. You’ve got to explore it because it is one thing to see a hint of a new particle, but it’s another thing to understand how that particle behaves. There are lots of different ways the Higgs particles can behave and there are lots of different mechanisms.
There is a very popular theory called supersymmetry which also would explain dark matter, one of the great mysteries in astrophysics. There seems to be a lot of extra stuff in the Universe that is not behaving the way that particles of matter that we know of behave, and with five times more “stuff” as what makes up everything we can see in the Universe. We can’t see dark matter, but we see its gravitational influence. There are theories where we have a very strong candidate for that — a new kind of particle called a supersymmetry particles. There are five Higgs particles in them rather than one. So the next question is, if that is a Higgs-like particle that we’ve discovered, then what is it? How does it behave? How does it talk to the other particles?
And then there are a huge amount of questions. The Higgs theory as it is now doesn’t explain why the particles have the masses they do. It doesn’t explain why the top quark, which is the heaviest of the fundamental particles, is something like 180 times heavier than the proton. It’s a tiny point-like thing with no size but it’s 180 times the mass of a proton! That is heavier than some of the heaviest atomic nuclei!
Why? We don’t know.
I think it is correct to say there is a door that needs to be opened that has been closed in our understanding of the Universe for decades. It is so fundamental that we’ve got to open it before we can start answering these further questions, which are equally intriguing but we need this answered first.
UT: When we do get some of these questions answered, how is that going to change our outlook and the way that we do things, or perhaps the way YOU do things, anyway! Maybe not us regular folks…
COX: Well, I think it will – because this is part of THE fundamental theory of the forces of nature. So quantum theory in the past has given us an understanding, for example, of the way semiconductors work, and it underpins our understanding of modern technology, and the way chemistry works, the way that biological systems work – it’s all there. This is the theory that describes it all. I think having a radical shift and deepening in understanding of the basic laws of nature will change the way that physics proceeds in 21st century, without a doubt. It is that fundamental. So, who knows? At every paradigm shift in science, you never really could predict what it was going to do; but the history of science tells you that it did something quite remarkable.
There is a famous quote by Alexander Fleming, who discovered penicillin, who said that when he woke up on a certain September morning of 1928, he certainly didn’t expect to revolutionize modern medicine by discovering the world’s first antibiotic. He said that in hindsight, but he just discovered some mold, basically, but there it was.
But it was fundamental and that is the thing to emphasize.
Some of our theories, you look at them and wonder how we worked them! The answer is mathematically, the same way that Einstein came up with General Relativity, with mathematical predictions. It is remarkable we’ve been able to predict something so fundamental about the way that empty space behaves. We might turn out to be right.
Tomorrow: Part 2: The space exploration and hopes for the future
The next Dragon spacecraft is prepped for its mission. If all goes according to plan this Dragon will be headed to the International Space Station. Photo Credit: Roger Gilbertson/SpaceX
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Space Exploration Technologies (SpaceX) is preparing its next Dragon spacecraft for a trip to the International Space Station (ISS). SpaceX has worked over the last several months to make sure that the spacecraft is set for the Nov. 30 launch date that has been given to the commercial space company. If all goes according to plan, a little more than a week after launch – the Dragon will dock with the ISS.
NASA has technically agreed to allow SpaceX to combine all of the tests and demonstration activities that were originally slated to take place on two separate flights (COTS demo missions 2 and 3). SpaceX is working to further maximize the cost-effectiveness of this mission by including additional payloads in the Falcon 9’s second stage. These will be deployed after the Dragon separates from the rocket.
The Falcon 9 rocket that will ferry the Dragon spacecraft to orbit sits waiting its launch date at SpaceX's hangar at Cape Canaveral. Photo Credit: SpaceX
“SpaceX has been making steady progress towards our next launch,” said SpaceX’s Communications Director Kirstin Brost-Grantham. “There are a number of challenges associated with berthing with the International Space Station, but challenges are the norm here. With each mission we are making history.”
NASA is waiting to provide final approval of the mission’s combined objectives once any and all potential risks that are associated with the secondary payloads have been worked out.
The Dragon spacecraft needs extra electrical power to conduct station operations. That power is provided via two solar arrays, one of which is seen in this image. Photo Credit: SpaceX
There is a lot riding on the Commercial Orbital Transportation Services (COTS) contract. If crew members on the orbiting laboratory can access the Dragon’s contents and the spacecraft conducts all of its requirements properly – it will go a long way to proving the viability of NASA’s new path toward using commercial spacecraft and it could usher in a new era of how space flight is conducted.
It is hoped that private-public partnerships could lower the cost related to access-to-orbit and in so doing also help to increase the reliability, safety and frequency of space flight.
Clockwise from upper left: The Falcon 9's first stage tank, with domes and barrels for the second stage; the nine Merlin engines in a test stand, the pressure vessel for the CRS-1 Dragon spacecraft; composite interstage structure that joins the stages together. Photo Credit: Roger Gilbertson / SpaceX
SpaceX has been working from milestone to milestone in getting the next mission ready to launch. Just this week the company conducted what is known as a wet dress rehearsal or WDR of the Falcon 9 rocket out at Cape Canaveral Air Force Station’s Space Launch Complex 40 (SLC 40). The Falcon 9 was loaded with propellant and went through all of the operations that lead up to launch – right down to T-1 second. At that point, the launch team stands down and the Falcon 9 is detanked.
SpaceX last launched from SLC 40 last December, during the intervening months the company has worked to upgrade the launch pad. New liquid oxygen or LOX tanks have been installed. These new tanks should streamline loading time from 90 minutes – to under 30 minutes. It is hoped that these efforts will allow the Falcon 9 to move from the hangar to liftoff – in under an hour.
SpaceX has launched the Falcon 9 twice and the Dragon spacecraft once – each completed the primary objectives successfully and helped to establish SpaceX as a leader in the NewSpace movement. SpaceX has inked many lucrative contracts, both domestic and foreign as a result. Besides the COTS contract, SpaceX is also one of the companies that has a contract under the Commercial Crew Development contract (phase-02) or CCDev-02.
This scene might play out for real in the coming months as SpaceX prepares to launch one of its Dragon spacecraft to the International Space Station. Image Credit: SpaceX
This artist's concept shows a star encircled by a disk of gas and dust, the raw materials from which rocky planets such as Earth are thought to form. Image credit: NASA/JPL-Caltech
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“I love rocky road… So won’t you buy another gallon, baby…” Yeah. We all love rocky road ice cream, but what do stars like to snack on? In the case of the white dwarf star it would appear that a rocky body – similar to Earth – could be a preferred blend. At one time astronomers thought the dense, elderly stars were just gathering dust… but apparently it’s the “bones” left-over from a planetary knosh.
Using the Keck I telescope on Mauna Kea in Hawaii, astronomer and study coauthor Ben Zuckerman of UCLA and his team have been studying two helium-dominated white dwarfs – stars PG1225-079 and HS2253+8023. About the size of Earth, but as massive as the Sun, these stars have a zone of “pollution” around them that’s around equal in mass to asteroid Ceres.
“This means that planet-like rocky material is forming at Earth-like distances or temperatures from these stars,” says Zuckerman. He also notes that it’s still unclear whether the material is from a planet, planet-like bodies or an asteroid, but it is clear that there’s a lot of it.
Because looking at a white dwarf star for evidence of solar systems wasn’t really a high priority consideration, these new findings could lend researchers some new clues. It’s not just dust – it’s dust with a signature. Because the white dwarf has a “clean” atmosphere of hydrogen or helium, finding other components in its spectra could point to a one-time presence of Earth-like planets. Zuckerman says that between 25 and 30 percent of white dwarfs have orbital systems that contain both large planets and smaller rocky bodies. After the dwarf forms, larger, Jupiter-mass planets can perturb the orbits of smaller bodies and bounce them toward the star.
“This is the first hint that despite all the oddball planetary systems we see, some of them must be more like our own,” says astronomer John Debes of NASA’s Goddard Space Flight Center in Greenbelt, Md., who was not involved in the study. “We think that most of these systems that show pollution must in some way approximate ours.”
How do they know if they have a candidate? Star PG1225-079 has a mix of elements, including magnesium, iron and nickel (along with others). These were found in ratios very similar in overall content of Earth. Star HS2253+8023 contains more than 85 percent oxygen, magnesium, silicon and iron. Not only are these assessments also similar to our planet, but found in the correct range where this type of rocky body should have formed.
“I’ve never seen so much detail in spectra,” says astronomer Jay Holberg of the University of Arizona in Tucson, who was not involved in the study. “People have seen iron and calcium and other things in these stars, but [this group has] gone off and found a whole slew of other elements.”
A great look back at the final launch of the space shuttle program. Includes some footage I hadn’t seen before, such as views of the crowds gathered to watch the launch, and features all the great quotes from Mike Leinbach, Chris Ferguson, George Diller and Rob Navias.
A space radar picked up the sounds of a meteor shower as it delighted skywatchers over the weekend.
What do meteors sounds like as they hit Earth’s atmosphere? From this recording made by the U.S. Air Force Space Surveillance Radar in Texas, the “pings” from the Perseid Meteor Shower sound rather alien! The radar station in Lake Kickapoo, Texas is part of United States Strategic Command’s (USSTRATCOM), which involves detecting, tracking, cataloging and identifying artificial objects orbiting Earth, such as both active and inactive satellites, spent rocket bodies, or fragments of debris from natural and man-made objects. Reportedly, the radar can detect objects as small as 10 cm (four inches) at heights up to 30,000 km.
Another new Carnival of Space, this time with Dear Astronomer, a.k.a. Ray Sanders. You may have noticed Ray has penned a few articles for Universe Today lately (see here, here and here, for example!) and we look forward to more great articles from Ray. But in the meantime, check out Carnival of Space #210, and browse around the Dear Astronomer site, where you can ask questions about astronomy and science and find news and astronomy-related product reviews.
And if you’re interested in looking back at previous Carnivals, here’s an archive to all the past Carnivals of Space. If you’ve got a space-related blog, you should really join the Carnival. Just email an entry to [email protected], and the next host will link to it. It will help get awareness out there about your writing, help you meet others in the space community – and community is what blogging is all about. And if you really want to help out, sign up to be a host. Send an email to the above address.
