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October 20, 2015

Astronomers discover most 'habitable,' Earth-like planet yet

Astronomers have discovered what they say is the most Earth-like planet yet detected — a distant, rocky world that's similar in size to our own and exists in the Goldilocks zone where it's not too hot and not too cold for life.

October 20, 2015

Huge 'El Gordo' galaxy cluster packs mass of 3 quadrillion suns

The most massive galaxy cluster ever observed in the early universe is quite a bit bigger than astronomers had thought.

October 20, 2015

Who in the universe is listening to The Beatles?

On Feb. 9, 1964, The Beatles took the state at the Ed Sullivan Theater for their first U.S. show. The waves of that TV broadcast are now nearly 300 trillion miles away -- and still traveling.  

October 20, 2015

Best time to see Perseid meteor shower: now

Every August, just when many people go vacationing in the country where skies are dark, the best-known meteor shower, makes its appearance.

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."

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.

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.

October 20, 2015

Astronomers find biggest black hole ever

Astronomers have discovered what may be the most massive black hole ever known in a small galaxy about 250 million light-years from Earth, scientists say.

October 20, 2015

Farthest-known galaxy in the universe found, scientists say

A new celestial wonder has stolen the title of most distant object ever seen in the universe, astronomers report.The new record holder is the galaxy MACS0647-JD, which is about 13.3 billion light-years away.

October 20, 2015

Navy returns NASA's Orion after test flight

NASA's new Orion spacecraft returned to dry land in Southern California after a test flight that ended with a plunge into the Pacific Ocean.