A new video of solar streamers evokes the streaking stars seen during spacecraft hyperdrives in "Star Wars."
NASA's Earth Observatory has released a photo of a crescent moon above an orbital sunset taken by an astronaut on the International Space Station.
The discovery of four shark fossils with bite marks shows that ancient sharks attacked or scavenged each other.
A type of antibiotic-resistant bacteria was on the skin of hedgehogs long before humans started using the antibiotics that scientists thought created these superbugs.