There is a fascinating workshop being held this week in Baltimore at the Space Telescope Science Institute: Habitable Worlds: Across Time and Space.... Read More

Terra Sapiens: The Human Chapter in the History of Earth
Dr. David Grinspoon, Library of Congress... Read More

Backyard stargazers get a monthly guide to the northern hemisphere’s skywatching events with “Tonight’s Sky.” May features the Eta Aquarid meteor shower, and could feature a meteor storm later in the month as Earth passes through the debris from Comet 209P/LINEAR. ... Read More