NASA astronaut Scott Kelly, recently passed the halfway mark of his one-year mission to the International Space Station, photographed the Nile River during a nighttime flyover, Sept. The photo was NASA& Image of the Day on Friday.
The Blue Marble.Original caption: "View of the Earth as seen by the Apollo 17 crew traveling toward the moon. This is the first time the Apollo trajectory made it possible to photograph the south polar ice cap.
with This is the expanding remains of a massive star that exploded about 8000 years ago. Called the Veil Nebula the debris is one of the best-known supernova remnants deriving its name from its delicate draped filamentary
An artist's illustration of the black hole at the heart of a quasar in the distant universe. The biggest black hole known to exist lives in the nearby galaxy It's times bigger than the Milky Way's supermassive black hole.