Meet Callichimaera perplexa, the platypus of crabs. It's a 95-million-year-old extinct species that, scientists say, will force us to rethink the definition of a crab.
Derechos typically form in late spring and summer. They are violent storm systems that can produce widespread wind damage across a large area. Check out the images in this post.
Casual observers rarely see a moon within 24 hours of new moon. But observers who have the right conditions, and are watching carefully - and those using telescopes or binoculars - can see much younger moons.
On May 6, 7 and 8, 2019, watch for the young crescent moon to pass by the planet Mars. Just don't mistake the star Elnath for Mars. Elnath is the 2nd-brightest star in Taurus the Bull.
Solar sails use faint pressure from sunlight to propel a spacecraft forward. A next-generation solar sail - called a diffractive solar sail - might be made of metamaterials, or smart materials.
While searching for the source of methane on Saturn's large moon Titan, researchers found a completely unexpected corridor of methane ice wrapping nearly halfway around the moon.