Once again an intrepid team of scientists and other adventurers is combing the ice fields of Antarctica for meteorites. Follow the searchers on their quest — and learn about the leaders who return for a cold soak year after year — by reading the team's daily weblog.
A controversial vote to define "planet" two years ago created more confusion than clarity. So scientists, educators, and curious hangers-on have gathered to get a better handle on what to call the menagerie of worlds that inhabit our solar system and those of other stars.
In 55 BC, when Julius Caesar and his fleet approached the white cliffs of Dover on the British coast, he faced unexpectedly strong tides. Researchers from Texas State University have used tidal measurements and other astronomical clues to revise the exact date of the historic landing.
How bad is the light pollution where you live? How many stars can you see on a dark night? Last year the GLOBE at Night project tallied 8,500 star-counting estimates from around the world. That's great — but we can do better! All it'll take is 30 minutes and a clear evening between now and March 8th.