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On Sunday, NASA launched three PhoneSats into orbit. House in a standard "cubesat" structures, a Google-HTC Nexus One serves as the onboard computer and sensor system, taking photos of Earth. Aamateur radio operators are monitoring the transmissions and picking up data packets that will be recombined here on Earth. According to a NASA press release, the use of commercial-of-the-shelf parts, a minimalist design, and limited mission requirements kept the cost of each satellite as low as $3500. PhoneSat: NASA's Smartphone Nanosatellite
Canadian Space Agency astronaut and flight engineer Chris Hadfield watches a water bubble float freely between him and the camera in the Unity node of the International Space Station. Hadfield became the first Canadian commander of the International Space Station on March 13. [NASA]
Federal agents grabbed him over the weekend just as he was boarding a flight from Dulles airport (in DC) to Beijing. He is charged with making false statements to U.S. authorities by failing to disclose all of the electronic devices he was carrying on his one-way flight, and has since been jailed.
A space history project led by Amazon.com founder Jeff Bezos has exciting news out today: Apollo mission F-1 engines have been recovered from deep beneath the surface of the Atlantic ocean, as the "F-1 Recovery Project" years in the making reaches a successful conclusion.
Here's video of the Remote Operated Vehicles recovering the engines from the ocean floor.
The F-1 rocket engine is still a modern wonder — one and a half million pounds of thrust, 32 million horsepower, and burning 6,000 pounds of rocket grade kerosene and liquid oxygen every second. On July 16, 1969, the world watched as five particular F-1 engines fired in concert, beginning the historic Apollo 11 mission. Those five F-1s burned for just a few minutes, and then plunged back to Earth into the Atlantic Ocean, just as NASA planned. A few days later, Neil Armstrong stepped onto the moon."We're excited to be bringing a couple of your F-1s home," Bezos said to NASA.
And Boing Boing has a statement from NASA Administrator Charlie Bolden:
Amazing, historic stuff. But all of these old media formats are fragile, and preservation can be a long and tedious process.
Cowing and Wingo funded the archival effort themselves in the beginning, then secured some funding from NASA. But the NASA funding was modest, and has run out; the guys have been funding the project themselves, and they don't have the resources they need. They have exceeded the requirements of NASA’s funding, but just haven't been able to retrieve and digitally archive all of these irreplaceable historic space images—yet.
So they're crowdsourcing funds on RocketHub. They've raised about 1/3 of their goal at the time of this blog post, and they have only 5 days left.
Miles O'Brien did a "This week in Space" webshow episode about the project back in 2010; check it out above.
Gravity isn't uniform. Denser planets and objects in space — that is, things with more mass to them — experience a stronger pull of gravity. But even if you zoom in to the level of a single planet (or, in this case, our Moon), gravity isn't uniform all the way around. That's because the mass of the Moon isn't uniform, either. It varies, along with the topography. In some places, the Moon's crust is thicker. Those places have more mass, and thus, more gravitational pull.
This map, showing changes in density and gravity across the surface of the Moon, was made from data collected by Ebb and Flow — a matched set of NASA probes that mapped the Moon's gravitational field before being intentionally crashed on its surface last December. By measuring the gravitational field, these probes told us a lot about how the density of the Moon varies which, in turn, tells us a lot about topography.
You can read more about the probes (and see some videos they took of the lunar surface) at the NASA Visualization Explorer.
Go and check out Glenn Fleishman's fantastic set of photos from the Jet Propulsion Lab's sandbox, where the scientists get to hang out and play with one of Curiosity rover's siblings.
From NASA's Image of the Day blog: "This face-on galaxy, lying 45 million light-years away from Earth in the southern constellation of Fornax (The Furnace), is particularly attractive for astronomers. NGC 1097 is a Seyfert galaxy. Lurking at the very center of the galaxy, a supermassive black hole 100 million times the mass of our sun is gradually sucking in the matter around it. The area immediately around the black hole shines powerfully with radiation coming from the material falling in."
It was forty years today (at 22:54:37 UT) that human beings left the moon for the last time. Commander Gene Cernan's last words as stood on the moon were lofty, rehearsed and memorized:
"As I take man's last step from the surface, back home for some time to come (but we believe not too long into the future), I'd like to just say what I believe history will record: That America's challenge of today has forged man's destiny of tomorrow. And, as we leave the Moon at Taurus-Littrow, we leave as we came and, God willing, as we shall return: with peace and hope for all mankind."
His real last words uttered on the moon, just before hitting the button that would launch the "Challenger" Lunar Module carrying him and Harrison "Jack" Schmitt back to the orbiting Command Module "America" were more apt for a card-carrying member of the "Right Stuff Club".
"Okay, Jack, let's get this mutha outta here," said Cernan.
Cernan's autobiography "The Last Man on the Moon" is a great read. Among the things you might find surprising: Cernan crashed a Bell B-13 (M*A*S*H) helicopter into still water at Cape Canaveral in January of 1971 nearly killing himself. Read the rest
Read the rest
View of the Earth as seen by the Apollo 17 crew traveling toward the moon. This translunar coast photograph extends from the Mediterranean Sea area to the Antarctica south polar ice cap. This is the first time the Apollo trajectory made it possible to photograph the south polar ice cap. Note the heavy cloud cover in the Southern Hemisphere. Almost the entire coastline of Africa is clearly visible. The Arabian Peninsula can be seen at the northeastern edge of Africa. The large island off the coast of Africa is Madagascar. The Asian mainland is on the horizon toward the northeast."
Here's the best way I can sum up this story: Yes, some NASA scientists are working on a design for a warp drive. No, that doesn't mean warp drives are real.
Warp drives — as a purely theoretical thing and/or science-fiction plot device — involve manipulating space-time to allow a spaceship to go faster than the speed of light. It's basically loophole that would allow you to get around those pesky laws of physics. Swiss bank account:taxes::Warp drives:speed of light. You get the picture.
Harold White of NASA’s Johnson Space Center is currently leading an effort to design a warp drive space ship. But, as Amy Teitel explains in a story for Vice's Motherboard, the fact that this is happening does not necessarily mean a real working warp drive is possible. It's more about the fact that NASA is partly in the business of letting really smart people try things that are kind of crazy and unlikely, if they can back up the idea with a reasonably plausible hypothesis. Speculative research is a thing that happens.
The problem is that breaking the light barrier isn’t at all like breaking the sound barrier. The sound barrier–properly, the aerodynamic effects of pressure waves interacting with a body as it approaches the speed of sound–was broken with a cleverly engineered aircraft and an at-the-time state of the art rocket engine.
Bell’s X-1 was, importantly, a physical aircraft made of matter, not made of sound. But the atoms and molecules that make up all matter are connected by electromagnetic fields, and that’s the same stuff that light is made of. So when it comes to breaking the light barrier, it’s like breaking through light with light (sort of… ask Brian Greene). As NASA poses the question, “How can an object travel faster than that which links its atoms?” It’s a very different matter.
Another issue special relativity brings up is the light speed barrier. Moving takes energy, and the faster you move the more energy you use. So, theoretically, to move at the cosmic speed limit of light you need an infinite amount of energy. That’s a distinct barrier if there ever was one.
What might the Curiosity rover find on Mars? So many cool things. Maybe friends that hug your face! Maybe Nixon's secret tapes! Or maybe even something less easily fit into song lyrics, like significant amounts of Martian methane.
This video, made by Cinesaurus, is a parody of "Dumb Ways to Die", an adorably demented public safety message from Australia's Metro Trains Melbourne. If you've not seen that yet, you should check it out as well.
Thanks to Andrew Balfour and Michael Bernstein!