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Featured Article
Eclipse: Lunar - Earth's Shadow
In a lunar eclipse, if the width of the shadow of the Earth is twice the width of the Moon, then the width of the Earth itself is (very nearly) three times that of the Moon--not twice, as one might...
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Featured Blog Post
Notes from the Astronomy Underground- Astropalooza
According to the tagline in Ridley Scott’s 1979 blockbuster Alien, “In space, no one can hear you scream.” It’s true that sound waves, unlike light, need a medium- some kind of...
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News Articles
- A Pool of Distant Galaxies the deepest ultraviolet image of the Universe yet
- A Dark Matter Disk In Our Galaxy
- NASA's Phoenix Mars Lander Delivers Soil Sample to Microscope
- Plutoid chosen as name for Solar System objects like Pluto
- Brown-Led Team Finds Evidence of Water in Moon's Interior
- New Findings Show Diverse, Wet Environments on Ancient Mars
