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NASA will study solar weather in two new missions
Solar winds are no threat to people on Earth, but can pose a danger to astronauts and spacecraft. NASA has selected two new missions that aims to better our understanding of how the Sun drives extreme space weather. The first mission, Polarimeter to Unify the Corona and Heliosphere (or PUNCH) will consist of four suitcase-shaped satellites that will track solar wind as it leaves the sun. The second, Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites (or TRACERS) will use two spacecraft to study how magnetic fields around Earth interact with the Sun.
This is how carbon dioxide moves around the world
NASA likes studying and illustrating the effects carbon dioxide has on our planet. It's kind of a hobby for the organization. And now the aeronautics association has a new model for how greenhouse gases move through the atmosphere. It's thanks in part to the Global Modeling and Assimilation Office from the Goddard Space Flight Center, combined with data from from the Orbiting Carbon Observatory-2, chronicling the movement of CO2 from September 2014 through September 2015.
Venus' electric wind stripped its atmosphere of water
Venus is even less forgiving than scientists thought. NASA researchers have discovered that the planet has an electrical field so massive (five times larger than Earth's) that it creates a wind strong enough to strip the atmosphere of water. It's a one-two punch: the sunlight breaks the water down into hydrogen and oxygen ions, while the electric wind speeds up those ions to the point that they can escape Venus' gravity. NASA isn't certain why the field is so large, but they suspect that Venus' proximity to the Sun (and the resulting bright ultraviolet light) might play a role.
NASA installs the first mirror on the Hubble's replacement
NASA announced on Wednesday that it had successfully installed the first of 18 mirrors on the new James Webb space telescope. The work took place at NASA's Goddard Space Flight Center in Greenbelt, Maryland earlier this week.
NASA flies four satellites in 'tightest ever' formation
NASA is boasting that it's been able to fly four giant satellites around our home in the "tightest" formation ever attempted in space. The quartet of craft are just six miles apart, and comprise the Magnetospheric Multiscale Mission, a project to measure Earth's magnetic fields as they swirl around us. In order to fully understand how the magnetosphere works in three-dimensional space, the satellites had to be guided to fly in the shape of a four-sided pyramid. Now, if you're struggling to see why this is such a big deal, remember that each satellite is the size of a baseball field and each one is hurtling through the abyss at 15,000 miles per hour.
NASA creates eye-popping 160-megapixel image of our two nearest galaxies (video)
NASA is determined to bring the final frontier closer than ever -- or at least a small, photographic slice of it. Using NASA's Swift satellite, astrophysicists at Goddard Space Flight Center and Pennsylvania State University were able to create a stunningly detailed survey of the two galaxies closest to us: the Small and Large Magellanic Clouds. The 160-megapixel image was painstakingly stitched together using thousands of smaller photographs captured with Swift's Ultraviolet/Optical Telescope. Rendering the galaxies in UV wavelengths allows researchers to study details unseen in visible light images, like individual stars surrounding the Tarantula Nebula in the LMC (the large pink cluster in the photo above). This high-res mosaic provides ample opportunity to study the life cycles of stars, from birth to death, in detail astrophysicists could previously only dream about. Fancy a tour? Check out the video after the break -- or journey on past the source link to download the 457MB TIFF.
Alt-week 8.25.12: robotic noses, Nodosaurs and Space X launches again
Alt-week peels back the covers on some of the more curious sci-tech stories from the last seven days. All good things come to an end, they say. Thankfully, most bad things do, too. So while the rest of the world of tech is dealing with the fallout, and possible implications of patent law, over here in the wild party that is Alt, we're fist pumping at all the awesome weekly sci-tech fodder. For example, we've got a robo-nose that can sniff out nasties in the air, a 110-million-year-old footprint found in NASA's back yard, and not one, but two space stories to reflect on. There's a hidden joke in there too, come back once you've read through to find it. This is alt-week.
NASA finds smallest ever black hole by its 'heartbeat' (video)
NASA's found the smallest black hole it's ever seen, thanks to the Rossi X-Ray Timing Explorer (RXTE) -- weighing around three times as much our own sun, it's near the bottom weight limit for the super-heavy phenomena. It was discovered by its unique "heartbeat", an X-Ray emission that takes place when gas sucked from a nearby star is swirled around the event horizon until friction causes it to super-heat. The disc then repeats the process every 40 seconds and when examined, looks just like the readout on an ECG machine. After the break we've got a video that talks you through it all and we won't mind if you start booming "Space... the final frontier..." halfway through -- we did too.
NASA building a harpoon to fire at comets, suddenly renders plot of 'Armageddon' plausible (video)
Whatever Michael Bay uses to propel that "high-concept" imagination of his, he's obviously passed some of it to the boys at NASA's Goddard Space Flight center. A team there is developing a hollow-bodied harpoon that can be fired from a cannon toward comets too dangerous to land on. Once landed, it fills up with sub-surface samples before winched back aboard the waiting space craft. It's currently being tested by firing the harpoon (using a six foot ballista) into a bucket of dirt -- if they fired it horizontally it'd travel about a mile. After the break we've got video explaining this madness in some detail -- which we promise is Aerosmith-ballad free.
Visualized: NASA's lunar laser light show
NASA's been quietly shooting lasers at the moon -- and the Lunar Reconnaissance Orbiter, specifically -- for some time now, but it only just opened its Laser Ranging Facility at the Goddard Space Flight Center to the public this weekend and, as you can see, it didn't fail to put on a show. Of course, the lasers do more than provide the backdrop for all-night NASA raves (we're guessing), they also measure the precise location of the LRO and ensure the accuracy of the lunar maps its generates.
