Mission specialists Piers Sellers and Mike Fossum spent the day outside the International Space Station today, completing the second spacewalk…
This Cassini photograph shows Saturn's moon Enceladus spraying water ice from its southern pole. And if you look carefully, you…
In about a week, ESA's MetOp-A satellite will be launched from the Baikonur Cosmodrome in Kazakhstan. If all goes well,…
Greetings, fellow SkyWatchers! The Moon starts off the week, but be sure to watch for aurora activity despite its bright…
This image, taken by ESA's XMM-Newton observatory, shows the heart of supernova remnant RCW103. This is all that remains of…
The overwhelming scientific consensus predicts that human emissions of carbon dioxide will warm the planet over the coming decades and…
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ESA's SMART-1 spacecraft captured this image of crater Gassendi on the Moon. The spacecraft's advanced Moon Imaging Experiment (AMIE) captured…
The Mileura Widefield Array - Low Frequency Demonstrator was awarded $4.9 million in funding from the National Science Foundation this…
The space shuttle Discovery linked up with the International Space Station this morning after astronauts gave it a thorough inspection…