space

Voyager 1 may have left the solar system, 35 years after launch

Voyager 1 truly has gone where no man (or spacecraft) has gone before. Huge changes in the environment around the space probe indicate that it has gone beyond the heliosphere, our little corner of space that's dominated by the influence of the sun.

It only took 35 years for the craft to travel more than 11 billion miles from the sun and possibly exit the solar system. What scientists are seeing is a huge spike in galactic cosmic rays.

"Within just a few days, the heliospheric intensity of trapped radiation decreased, and the cosmic ray intensity went up as you would expect if it exited the heliosphere," said Bill Webber, professor emeritus of astronomy at New Mexico State University in Las Cruces.… Read more

New clues emerge on origin of Kepler's famous supernova

More than 400 years after skywatchers -- including astronomer Johannes Kepler -- witnessed the appearance of a spectacular new star in the night sky, astronomers have uncovered important new details about the origins of this famous supernova.

The supernova remnant contains iron-rich material surrounded by an expanding shock wave that scarfs up interstellar gas and dust in its path. The ensuing shroud of gas and dust is estimated to be 14 light-years wide and is expanding at 4 million miles per hour.

A new study published online and in the February 10 issue of The Astrophysical Journal found that the … Read more

Sex in space may be dangerous, study says

I've always imagined that being up in space isn't really so much fun.

Yes, the views are nice, but the claustrophobia must be entirely stifling. What are you supposed to do up there, for days on end? You can't just work all the time.

The temptation, then, might be to occasionally enjoy a little recreation in the procreative sphere.

Sex would surely offer a touch of vigorous exercise and a little human community.

However, now research has emerged suggesting that sex up there could be dangerous.… Read more

Space shots: Our beautiful world from far above

Today, the International Space Station gets a change of command as outgoing NASA Commander Kevin Ford transfers leadership of the space lab to Commander Chris Hadfield, the first Canadian astronaut to assume the role. Hadfield and crew will carry out the planned Expedition 35 mission (PDF).

Our gallery below looks back at some the extraordinary images of Earth Hadfield captured with dSLRs during his first few months aboard the space lab (he and Expedition 34 arrived in mid-December). The unique vantage point of the ISS delivers unforgettable vistas, from the astoundingly abstract Australian Outback to a sensational shimmer of gold on the waters of the San Francisco Bay.… Read more

Curiosity Rover discovers conditions suited for ancient life on Mars

NASA is reporting that an analysis of a rock powder sample collected by the Curiosity rover suggests that ancient Mars could have supported living microbes.

The sample contained traces of sulfur, nitrogen, hydrogen, oxygen, phosphorus, and carbon -- key chemical ingredients for life.

For astronomers, the news constitutes the latest clue in their pursuit of a scientific holy grail: Answering the big question about whether life ever existed on the Red Planet. Their challenge until now has been to confirm whether the Martian atmosphere could have supported a habitable environment. The preliminary evidence now suggests the answer is yes, with the rock samples pointing to evidence that conditions on Mars were once favorable for life. A couple of particularly intriguing clues: The presence of clay as well as the absence of "abundant salt" point to the likely existence of an ancient environment where there was fresh water, according to NASA.… Read more

Rare views of eclipses as seen from space

The boffins who keep tabs on NASA's Solar Dynamics Observatory (SDO) had another of their periodic "wow" moments when the latest transmissions from space turned up a couple of unique images of the sun in eclipse. The first shot, transmitted earlier this morning between 2:15 to 3:45 ET, captured the sun partially blocked from view by the Earth. About five hours later, the SDO snapped a photo of the moon moving in front of the sun.

This is going to be a regular pattern for the next three weeks when Earth blocks the craft's … Read more

Elon Musk at SXSW: 'I'd like to die on Mars, just not on impact'

AUSTIN, Texas -- SpaceX and Tesla founder Elon Musk wowed a capacity SXSW crowd here today with the first public showing of a video of a rocket capable of blasting off and then returning safely and gently to the ground. And he later added he hopes to one day travel (perhaps one-way) to Mars.

The video of the company's Grasshopper rocket, filmed just about a day-and-a-half ago, demonstrates one of SpaceX's key propositions: That it can develop reusable rockets at a fraction of the cost of a traditional NASA mission, and that it can bring them back down … Read more

Crave Ep. 112: Sesame Street passes 1 billion views on YouTube

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This week on Crave, The Count counts 1 billion views on Sesame Street's YouTube Channel. Plus, the DRM chair self-destructs after eight sittings, we run screaming from a concrete-tossing robot dog, and sex up your iPhone with Sexy Smarty Pants underwear from Japan. All that and more goodies on this week's show. … Read more

Hubble telescope spots Space Invader in space

Humans have long looked up into space and assigned objects like lions, bears, and hunters to shapes made by the stars. Now the Hubble Space Telescope has looked up into space and discovered an object that looks an awful lot like a classic game creature from Space Invaders.

The image was taken in infrared light by Hubble's Wide Field Camera 3 and combined with near-infrared observations from Hubble's Advanced Camera for Surveys.

"The gravitational field surrounding this massive cluster of galaxies, Abell 68, acts as a natural lens in space to brighten and magnify the light coming from very distant background galaxies," the Space Telescope Science Institute says. "Like a funhouse mirror, lensing creates a fantasy landscape of arc-like images and mirror images of background galaxies."… Read more

The 404 1,219: Where it's all play and no work (podcast)

Leaked from today's 404 episode:

- Just say no: Polaroid returns with an instant camera shaped like...the Instagram icon.

- "Fresh Prince of Bel Air" theme song prompts school lockdown.

- You should watch "Room 237," a fan theory documentary about "The Shining."

- 50 fan theories that will blow your mind, and the Subreddit that goes with it.… Read more