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02.22.18

Homes Away From Home? Revisiting the Seven Planets of TRAPPIST-1

One year ago, astronomers announced the discovery that seven roughly Earth-sized worlds orbited around the nearby star TRAPPIST-1. Now a year later, additional data have refined our understanding of these planets.We now know more about the TRAPPIST-1 system than any other solar system other than our own.

Browse Videos in Hidden Universe: NASA's Spitzer Space Telescope

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12.18.06

Seeing the First Light

Astronomers peering deeply into the cosmos think they have found something remarkable... the light from the first obj...

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10.12.06

Night and Day on an Alien World

It's as clear as day and night... but on an exotic alien world! Astronomers have for the first time measured the temp...

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08.14.06

A Stellar Census of the Sword of Orion

New images of the Orion Nebula show thousands of nascent solar systems.

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06.16.06

Exposing the Exploding Cigar Galaxy

M82 has been called an exploding galaxy, and three of NASA's Great Observatories have teamed up to show it like it's ...

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05.02.06

Planetary Life After Death

Like a Phoenix rising from the ashes, astronomers have found that a whole new solar system may be forming in the wake...

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