91±¬ÁÏ

NASA October 20, 2015

NASA declares an end to Deep Impact comet mission after spacecraft goes silent

NASA has given up on the Deep Impact spacecraft, which suddenly went silent after nine years of exploration.

Astronomy October 20, 2015

Four asteroids buzz Earth in single week

In the last seven days, an asteroid the size of a city block and three smaller space rocks have zoomed safely by Earth, the latest demonstration that we live in a solar system that some scientists have dubbed a "cosmic shooting gallery."

Asteroids October 20, 2015

Suitcase-sized satellite launched to hunt asteroids, space junk

A rocket carrying seven new satellites, including the first spacecraft designed to hunt huge asteroids and two of the world's smallest space telescopes, launched into space Monday.

Asteroids October 20, 2015

Meteorite fragments spark 'gold rush' in Russia

Tiny fragments of the meteorite that blew apart over Russia may be worth more their weight in gold.

Asteroids October 20, 2015

Investors shrug at pie in the sky plans to mine asteroids, moon

A slew of space entrepreneurs are trying to convince investors that there's gold -- and platinum and other precious minerals -- inside asteroids, just waiting to be mined. It might be an investor black-hole, however.

Asteroids October 20, 2015

Company to unveil fleet of asteroid-mining ships for deep-space colonies

A new asteroid-mining company launches Tuesday with the goal of helping humanity expand across the solar system by tapping the vast riches of space rocks.

Astronomy October 20, 2015

Asteroid Apophis to whiz past Earth tonight -- and return for more in 2036

A European space telescope has captured new images of the huge asteroid Apophis, revealing that the potentially hazardous object is actually bigger than previously thought.

Astronomy October 20, 2015

Satellite spies asteroid Toutanis tumbling through space

A new video captures the giant asteroid 4179 Toutatis tumbling through space on its flyby of Earth earlier this week.

Asteroids October 20, 2015

Meteorite found! Fragment of California fireball hit house

A meteorite from a fireball that lit up the night sky over Northern California last week hit the roof of a Novato house and landed in the backyard, scientists say.

Astronomy October 20, 2015

Ancient asteroid destroyer finally found, and it's a new kind of meteorite

For 50 years, scientists have wondered what annihilated the ancestor of L-chondrites, the roof-smashing, head-bonking meteorites that frequently pummel Earth

NASA October 20, 2015

NASA photograph shows Comet ISON as it streaks toward sun

The potentially spectacular Comet ISON streaks through the constellation Leo in a stunning new NASA photo taken just a month before the icy object's highly anticipated close encounter with the sun.