An Astronomical Tour in the Realm of Galaxies
Astronomer Mark Thompson guides us through the summer skies, pointing out some galactic treasures. Read more
The Science Behind Saturday's Leap Second
The slight slowing of Earth's rotation is causing an extra second experience this weekend. Read more
Private Telescope to Hunt for Killer Asteroids
Two former NASA astronauts have given themselves a new mission: To seek out potentially dangerous asteroids so humanity can have enough time to do something about it. Read more
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