The GOP presidential hopeful wants to learn more about faraway worlds. Our planet, not so much.
Bees are essential for life as we know it, but we’re wiping them out.
Scientists used the Medea program to study how global warming could worsen conflict. Now that project has come to an end.
Carbon dioxide from thawing Arctic permafrost is likely to be released gradually, rather than in a catastrophic eruption.
A new study argues it happened all the way back when we invented farming.