What makes the Earth livable? In this animated cartoon, innocent alien M51 moves the Earth into a closer orbit around the sun, and learns an important lesson about life in the Universe.
In Greek Mythology, the Princess Andromeda was sacrificed to appease a sea monster's appetite. But astronomers are learning that the Andromeda Galaxy is less the spiral beauty and more the voracious beast.
They're known as the Pillars of Creation, but according to recent Spitzer observations these ghostly apparitions have already met their own destruction!
Astronomers peering deeply into the cosmos think they have found something remarkable... the light from the first objects to form after the universe was born!
It's as clear as day and night... but on an exotic alien world! Astronomers have for the first time measured the temperatures varying across the surface of a planet beyond our solar system.
M82 has been called an exploding galaxy, and three of NASA's Great Observatories have teamed up to show it like it's never been seen before.
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About Hidden Universe: NASA's Spitzer Space Telescope
From the publisher's feed
Witness our universe in a whole new way! This video series highlights some of the most exciting discoveries from NASA's Spitzer Space Telescope. In-depth 'Showcase' features, striking 'Gallery…
Explorer' montages, and other whimsical specials take you beyond the visible to a universe of dust and stars hidden from Earth-bound eyes. Spitzer is the infrared component of the NASA Great Observatory program which also includes Hubble (visible), Chandra (x-ray), and Compton (gamma ray).