Glacier melt means rats can reach bird nests on South Georgia, an island north of Antarctica and east of the Falklands. What to do? Send in helicopters!
Dawn spacecraft's chief engineer and mission director at JPL shares insights. Dawn due to reach Ceres in March, 2015. First spacecraft ever to orbit two planetary bodies!
Why do you bet on axions or WIMPs?
If you find dark matter, what are the next steps?
Will we need a whole new "Dark Standard Model"?
What's it like searching for something you may never find?
Odds are there’s intelligent life out there somewhere among the stars. Why haven’t we heard from an alien civilization? One viewpoint, in this article. What do YOU think?
Hundreds of millions of people in countries like India, Pakistan, Nepal and Bangladesh depend on the Hindu Kush Himalayan glaciers for food, energy and water.
Members of the EarthSky community - including scientists, as well as science and nature writers from across the globe - weigh in on what's important to them.
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