91±¬ÁÏ

October 21, 2015

Newfound asteroid will give Earth super-close shave on Sunday

Earth is about to have a close encounter with a house-sized asteroid on Sunday Sept.7.

October 21, 2015

These bizarre deep-space radio blasts have astronomers baffled

A split-second burst of energy that erupted in deep space is giving astronomers important new clues about a mysterious class of astrophysical phenomena.

October 21, 2015

Neutron stars collide to form black hole in new NASA simulation video

A new supercomputer simulation released by NASA showcases two neutron stars colliding and merging to produce a black hole, in what is one of the most violent events in the universe.

October 21, 2015

Milky Way's structure mapped in unprecedented detail

Astronomers are one step closer to solving a longstanding mystery — just what our Milky Way galaxy looks like.

October 21, 2015

Sun, Mars, Earth to align in rare cosmic event and more in April's night sky

Planets abound in the night sky this month.

October 21, 2015

Watch a 45-mile-wide asteroid blot out a star tonight

An asteroid the size of Rhode Island will briefly blot out one of the brightest stars in the sky overnight tonight (March 19-20), and you can watch the rare celestial event live online, weather permitting.

October 21, 2015

Watch the Moon, Mars and star form a celestial triangle Wednesday night

If your weather is clear late Wednesday, take a look at the sky toward the east-southeast horizon to spot a "celestrial triangle" formed by the moon, a bright star and an even brighter planet: Mars.

October 21, 2015

Faint smudges may indicate Comet ISON survived sun encounter

A comet that gained an earthly following because of its bright tail visible from space was initially declared dead after essentially grazing the sun. Now, there is a silver of hope that Comet ISON may have survived.

October 21, 2015

Scientists study violent winds of Uranus, Neptune

Screaming winds of infernal violence alternate with periods of dead calm as one nears the surface of Uranus, according to a new analysis of the gas giant.

October 21, 2015

Most powerful star explosion ever seen

Two NASA space telescopes have captured what appears to be the most powerful star explosion ever detected, a cosmic event so luminous that scientists dubbed it "eye-wateringly bright" despite being 3.6 billion light-years from Earth.