A new NASA study has traced some mysterious members of the near-Earth asteroid population back to their likely source – the Euphrosyne family of dark asteroids in the outer asteroid belt.
Peter Lowenstein in Zimbabwe – who has contributed many amazing photos to EarthSky – offers what might be your final glimpse of the planets after sunset.
New SETI project will scan the skies for signs of alien communications, but might also unveil other secrets about the universe.
Max Corneau captured this image of what is called the Sagittarius Triplet. It consists of two nebulae (M8 and 20) and a star cluster (M21). He wrote:
I adore summer astronomy. When I was a young boy, my dad and I spent the cool Rhode Island nights at the seashore fishing. I did not realize, and never thought to ask why there was always a big ‘cloud’ in the sky. Now I know because that’s our home ….
One of the most recognizable constellations is Cassiopeia the Queen, which now can be found in the northeastern sky a couple of hours after the sun goes down. This constellation has the distinct shape of a W, or M, depending on your perspective. This fairly bright constellation is oftentimes visible on a moonlit night. However, if the glare of tonight’s waning gibbous moon proves to be too overwhelming, try viewing Cassiopeia in another day or two. By then, you’ll have more moon-free viewing time after dark.
Cassiopeia is associated with a queen of Ethiopia. She is sometimes called the Lady of the Chair. Queen Cassiopeia was said to have offended the sea nymphs, or Nereids, by boasting that her own beauty was greater than theirs.
Happy birthday to our August friends! This is one of your birthstones, peridot. Your other birthstone is sardonyx.
Read about both of your birthstones….
The data suggest that the organic compounds that eventually translated into organisms here on Earth existed in the early solar system, says scientist.
Astronomers have created a new map of the Milky Way that shows that about 30 percent of the stars have traveled a long way from where they were born.
A week ago, astronomers announced that NASA’s Spitzer Space Telescope had confirmed the nearest known rocky exoplanet, orbiting the star HD219134, about 21 light-years away. Finder charts show the star in your night sky. Plus … a gif image showing the star’s proper motion, captured by an amateur astronomer.
New research suggests that around 8,200 years ago, the climate of the American West began transitioning from a lush landscape to the desert terrain we know today.