Watch Bill Nye explain why the Juno spacecraft is being routed so close to Earth on October 9, and what the craft will do when it reaches Jupiter in 2016.
Extensive laboratory studies of the Chelyabinsk meteorites revealed traces of ancient space collisions even more violent than the recent encounter with Earth.
Star trails are the continuous paths created by stars, produced in long time-exposure photographs. This composite is made from 350+ images stacked together.
For 105 days, zookeepers monitored Sumatran tiger Melati through hidden cameras installed to keep an eye on her first birth. See the birth on this video.
Mars Reconnaissance Orbiter, and Mars rovers Curiosity and Opportunity, have all tried to image Comet ISON in recent days as it swept past Mars. The orbiter's image is here.
NASA and ESA announced earlier they were readying a flotilla of spacecraft to record the comet's passage near Mars. How much will the U.S. government shutdown interfere? Not much, it seems.
Deborah Byrd (asteroid 3505 Byrd) helps edit EarthSky.org and is a frequent host of EarthSky videos. Deborah created the EarthSky radio series in 1991 and founded EarthSky.org in 1994. Prior to that, she had worked for the University of Texas McDonald Observatory since 1976, and created and produced their Star Date radio series. She has won a galaxy of awards from the broadcasting and science communities, including having an asteroid named in her honor in 1990, a Public Service Award from the National Science Board in 2003, and the Education Prize from the American Astronomical Society in 2020. A science communicator and educator since 1976, Byrd believes in science as a force for good in the world and a vital tool for the 21st century. "Being an EarthSky editor is like hosting a big global party for cool nature-lovers," she says.