Space Shuttle Discovery’s Final Launch Finally Happening (Finally)

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At 4:50 PM ET, the space shuttle Discovery will lift off. Finally. That is, if everything goes plan–an important caveat, given the fact that the launch has been repeatedly delayed since November 5th, thanks to poor weather conditions, electric problems, and a number of leaks found in the shuttle’s fuel tank.

Fueling for the launch began today at 7:25 ET. The process takes three hours to complete.

The launch marks the final mission for the shuttle after 27 years. The mission will last eleven days, during which the crew will help stock the International Space Station with supplies and a new robot helper named Robonaut 2.

Robonaut 2: the trailer

In a world where the space shuttle program was in its last days… one robot answered the call to serve… persevered… and found that… just maybe… he had the right stuff too. Now… the mission is set… the countdown is on… and the ticket is one-way. Thursday, February, 24th. 2011. Robonaut 2: The Beginning.

[Thanks, Joe B.]

Continue reading Robonaut 2: the trailer

Robonaut 2: the trailer originally appeared on Engadget on Mon, 21 Feb 2011 20:15:00 EDT. Please see our terms for use of feeds.

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This Is the Sound of a Comet [Video]

On February 14 NASA’s Stardust spacecraft had a close encounter with the comet Temple 1. For the first time in history, we got to visit a comet two times—a strange opportunity that allowed scientist to see how these space objects change. More »

Humanoid Robot To Calm ISS Astronauts, Tweet About It

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If Watson’s massive win over the human race in Jeopardy! was a little too close to the robo-pocalypse for you, here’s a decidedly less confrontational artificial intelligence. Japan is considering sending a humanoid robot companion up to the International Space Station that would not only talk with the astronauts, but also to people on Earth using Twitter. According to an article on Space.com, the robot would have facial expressions that mimic a human being and serve as both a companion to the astronauts and a monitor for the space station. An engineer from the Japan Aerospace Exploration Agency (JAXA) said this artificial being would be “very human-like” and would monitor stress levels and other health indicators. Unlike other Twitter bots, this one might actually be worth following as it will also be responsible for taking photos and tweeting them back down to Earth.

NASA’s humanoid Robonaut 2 is already slated to join the ISS crew on Thursday with the launch of the Space Shuttle Discovery, according to the robot’s Twitter account. NASA’s android is designed to help astronauts with things like cleaning, not to provide companionship and comfort like the one planned by JAXA. Similar to the Japanese robot, Robonaut 2 will be using Twitter from Earth’s orbit.

Japan is known for leading the way in humanoid robotics, so it should be interesting to see what the country’s space agency cooks up for the ISS astronauts. Hopefully something with a little less alarming facial expressions than this one.

[via Space.com]

Bears: The Future of Space Travel

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Well, not so much the bears themselves–something tells me that letting a grizzly loose on a space station might not be particularly beneficial to the mission. Rather, the key here is bear hibernation, which scientists believe could be a key to enabling travel into deep space.

This assessment comes after a recent study conducted by the Alaska Department of Fish and Game, which found that hibernating black bears slow metabolic activity by 75 percent, despite only slight reductions in their body temperatures. Generally it’s understood that large changes in metabolism come with large changes in body temperature, a 50 percent drop in metabolism coming with a 50 degree Fahrenheit drop in temperature.
Scientist Øivind Tøien describes the measuring process thusly,
We measured the bears’ metabolism by continuously measuring the oxygen and carbon dioxide concentrations of the air entering and leaving the den. The transmitters inside each bear told us that the bear’s body temperature was not stable, but varied over the winter in slow cycles each lasting several days

Tøien believes that the discovery could make it possible to induce hibernation in people, thus making it possible to survive the long periods required for deep space travel.

Pluto: A Timeline

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Tomorrow marks the 81st anniversary of the discovery of Pluto, that troubled little celestial body that has become the subject of a heated planetary status debate over the past decade or so. In honor of the little dwarf planet, and the recent “discovery” of a giant planet six times the size of Jupiter, which may or may not exist at the edge of our solar system, we’re taking a quick trip down memory lane.

Giant Planet May, May Not Exist at Edge of Solar System

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Is there a giant planet four times the size of Jupiter hanging out at the edge of our solar system? The consensus from scientists is a definitive “maybe.”  Two researchers at the University of Louisiana at Lafayette believe that there’s a gas giant lurking in our solar system, a theory they base on the strange pattern of comets in the area.

The phantom planet has been nicknamed Tyche, after a Greek goddess, and it’s been the source of some major controversy–which is to say that a lot of fellow scientists aren’t really buying the theories about a giant ninth planet, at least not with the current evidence available.

Over at Discover Magazine, Phil Plait had this to say, 

I read their papers, and thought the data were interesting but unconvincing. The sample size was too small. A bigger study was done, but again the effects weren’t quite enough to rise to the level of breakthrough.

There you have it, a big, fat scientific “maybe.”

The Mystery of the Giant Planet Hidden In Our Solar System [Astronomy]

There’s a giant planet right here, hiding in our Solar System. One that nobody has ever seen, even while it is four times larger than Jupiter and has rings and moons orbiting it. At least, that’s what two astrophysicists say. More »

How Jules Verne Invented NASA

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“A hundred years ago, Jules Verne wrote a book about a voyage to the Moon. His spaceship, Columbia, took off from Florida and landed in the Pacific Ocean after completing a trip to the Moon. It seems appropriate to us to share with you some of the reflections of the crew as the modern-day Columbia completes its rendezvous with the planet Earth and the same Pacific Ocean tomorrow.”

Those are the words Apollo 11 commander Neil Armstrong recited for an entranced public as his ship returned from its mission to the moon. Armstrong was right to mention Verne’s 1865 sci-fi classic. There are, in fact, some oddly prescient details in From the Earth to the Moon–even for an author so forward thinking as Verne.

Armstrong points out the similarities between its name and the name of the Apollo 11’s command module–that part’s actually only part right. The name of the space cannon used to launch the ship was the Columbiad, named for a real U.S. cannon that was used heavily in the war of 1812.

Verne estimated that the mission would have cost his day’s equivalent to $12.1 billion. Surprisingly spot on–the Apollo program up through Apollo 8 (the first manned vehicle to circumnavigate the moon) cost $14.4 billion. As with the book, that mission also a crew of three astronauts. Verne’s were named Ardan, Barbicane, and Nicholl–Apollo 8’s were Anders, Borman and Lovell.

The launch occurred 132 miles from the site of Verne’s prediction. As the above shot illustrates, the two ships also shared a number of physical properties.

Asteroid to Collide With Earth in 2036, Maybe

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Is the world in danger of being hit by a 900 foot long asteroid? Scientist say maybe. Definitely maybe. Apophis, which was originally said to be in danger of colliding with the Earth in early in 2029, may actually be hitting us in 2036. That’s slightly better news, I guess…
Russian scientists have nailed such a collision down to April 13 of that year. Of course, scientists are now arguing about how real that possibility actually is.
“Technically, they’re correct, there is a chance in 2036 [that Apophis will hit Earth],” NASA’s Near-Earth Object Program Office head, Donald Yeomans, told The Christian Science Monitor. “However, that chance is just 1-in-250,000.”
The likeliest scenario involves a close swing by the Earth at some point in the next couple of years. If it gets too close, NASA is confident in its ability to help avoid a collision.