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It was a busy day for planet Earth. Asteroid 2012 DA14, a 45-meter wide space rock, sped past the Earth a mere 17,100 miles overhead. In the Ural mountains of Russia, a 15-meter wide, 7,000 metric ton asteroid hit the Earth's atmosphere, creating a 300-kiloton shock wave that injured more than 1,000 people and shattered 1 million square feet of glass.

What are the odds that an asteroid impact will destroy your being in a given year? Slim -- 1 in 74,817,414, according to data compiled by The Economist. For comparison, the odds of … Read more

Along with Bermuda shorts, bold stripes, and statement sunglasses, Mars is hitting the catwalk this year.

Fashion designer Nanette Lepore debuted her fall 2013 collection at Mercedes-Benz Fashion Week in New York yesterday, and it's all about the Red Planet. Bags and high heels that shimmer like mysterious, shiny objects. Mod and angular shapes. And lots of red.

"Moody tones and spacey surfaces define Nanette's fall collection as she explores the contours of Mars," read a pre-show teaser on the designer's tumblr blog. … Read more

In less than 24 hours, a 150 foot-wide asteroid will complete a remarkably close, but safe, flyby. For weeks, scientists have been tracking the path of the small near-Earth asteroid known as 2012 DA14, which is on course to swing by the Earth tomorrow at 11:24 a.m. PT.

Again, no need to panic about a collision with Earth, which would be, in a word, catastrophic. If a space rock of this magnitude crashed into us, scientists say, it would release about 2.5 megatons of energy into the atmosphere. The last time an asteroid this size smacked into … Read more

Black holes are created when a supernova explosion destroys a massive star. Scientists have discovered dozens of black holes, but all of them are already formed. So, when scientists recently saw different distorted remains of a supernova, they knew it something special.

What the scientists believe they observed was the infant phases of a black hole, or the youngest black hole ever recorded in the Milky Way galaxy.

Caught on film by NASA's Chandra X-ray Observatory, the "remnant," or W49B, is seen as a vibrant swirl of blues, greens, yellows, and pinks. As seen from Earth, it … Read more

A United Launch Alliance Atlas 5 rocket blasted off from California and safely boosted a new Earth-watching Landsat into a polar orbit today to kick off an $855 million mission. It's the latest chapter in a 40-year program to monitor the planet's resources, land use, and environmental changes.

The Landsat Data Continuity Mission, or LDCM, got underway at 10:02 a.m. PT when the Atlas 5's Russian-designed RD-180 first-stage engine thundered to life and throttled up to full power with a rush of brilliant exhaust.

The towering 192-foot-tall rocket, generating some 860,000 pounds of thrust, … Read more

NASA's Curiosity rover currently roaming the surface of Mars is developing a bit of a reputation for discovering groundbreaking false alarms.

There have been been unverified hints of organic matter; mysterious methane that turned out to be some stowaway molecules from Earth; and strange shiny objects of unknown origin.

Yet none of these have led us to the Martians' secret underground base. So it is with some hesitation that I present the above photo from Curiosity that seems to show an even larger and shinier chunk of something metallic. The image was taken by Curiosity's Mastcam late last … Read more

Astronauts in the International Space Station have already explained how to clip fingernails and play guitar while orbiting 240 miles above the Earth. But what about all those other questions people may have about life in space?

They can be answered in an upcoming Google+ Hangout with three of the astronauts aboard the ISS -- Kevin Ford, Tom Marshburn, and Chris Hadfield.

NASA announced today that it is hosting its first live Google+ Hangout from space. It's to happen from 11 a.m. to 12 p.m. EST on February 22. The space agency is accepting questions in advance … Read more

Leaked from today's 404 episode:

- An asteroid is coming, and scientists are excited. Fear not, Earth is safe.

- Search for near-Earth asteroids needs a speed boost.

- Take a peek at Domino's Pizza's Super Bowl "war room."

- Free food: Pizza Hut introduces "Sliders."… Read more

An asteroid big enough to level a major metropolitan area (probably several of them, actually) will definitely not be doing any such thing this month, but it will come pretty darn close.

First spotted by a Spanish observatory last year, small asteroid 2012 DA14 (in this case "small" means about 150 feet in diameter, or roughly the size of a supermarket) will pass within 3.5 Earth radii of the surface of our planet on February 15.

That means that this big, menacing, but ultimately harmless space rock will actually be closer to us than our many satellites in geosynchronous orbit about 22,000 miles above the equator.… Read more