The globular star cluster Omega Centauri is a sought-after target for astrophotographers, visible only from southerly latitudes, for example, at the latitude of South Texas. That’s where Rob Pettengill captured this photo last month, in a little town – often called a ghost town – near Big Bend National Park.
Red rainbows happen when the sun is on the horizon. They’re created in much the same process that causes a sunset or sunrise to look red. Details – and more photos – inside.
This weekend’s full moon was the farthest full moon, and the smallest full moon of 2016. We’ve heard it called the micro-moon or mini-moon.
Mars and Saturn on the morning of April 19, from Weatherly, Pennsylvania. Thanks so much to Tom Wildoner for sharing his photo with us!
Montana’s rarest native animal, a black-footed ferret, surfaces on a starry night.
The moon swept past Jupiter over the past few nights. Check out these photos from the EarthSky community.
Many hoped Comet 252P/LINEAR would become visible to the eye. It has, but only barely. Enjoy photos from the few, the proud, who’ve captured this comet on film!
The sun is now moving toward a minimum in the 11-year solar cycle, and spots on the sun’s surface have been extremely few and far between. But, in recent days, a giant spot has come into view on the sun. Dubbed Active Region 2529, it is many times the size of Earth. EarthSky community member have captured images of AR2529 and it has now turned in Earth’s direction.
After making the steep-ever climb of any rover on Mars, Opportunity looked back along its own tracks toward a dust devil, twisting through the valley below.
On Sunday, as seen from North America, the moon “occulted” or passed in front of the star Aldebaran in daylight. Many then saw Aldebaran near the moon Sunday evening.