See it scooting along the top of this image, taken last week by Susan Gies Jensen? She also made a video from her still images. See it here, and learn to spot the station.
This image and video aren't artists' illustrations. They're from a real time-lapse sequence of images - acquired by the Hubble Space Telescope - of the tiny moon Phobos orbiting Mars. Cool!
People around the world watched this week as the waning crescent moon swept near the very bright planet Venus, and fainter star Aldebaran, in the east before dawn.
On July 14, an amateur group in Russia launched a small satellite called Mayak. They said it would become the "brightest shooting star" in the sky. Why'd they do it? Here's how to look for it.
This 5-second video shows a reflected image of the sun - a sun glint - as a bright spot crossing Earth from right to left. It also shows a dark spot - the moon's shadow - moving the opposite way.
You can't miss the star right next to brilliant planet Venus, in the east before dawn now. It's Aldebaran, the Eye of the Bull in the constellation Taurus.
During the Cosmic Dark Ages, our universe matured from a primordial soup of neutral gas to the star-filled cosmos we see today. A new study probes this mysterious time.
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.