Scientists have discovered an invisible shield roughly miles above Earth that blocks so-called “killer electrons,” which can fry satellites and degrade space systems during intense solar storms. Illustration by Andy Kale, University of Alberta.
The observations of Eta Carinae's light echo are providing new insight into the behavior of powerful massive stars on the brink of detonation. Credit: NOAO, AURA, NSF, and N. Smith (University of Arizona)
Astronomy Picture of the Day for 15 Jul Why is there a blue bridge of stars across the center of this galaxy cluster? First and foremost the cluster, designated SDSS contains many large yellow elliptical galaxies.
All Of Earth's Water In A Single Sphere This picture shows the size of a sphere that would contain all of Earth's water in comparison to the size of the Earth. The diameter would be roughly the distance from Salt Lake City, Utah to Topeka, Kansas.
At only about 5000 light years away, the Lagoon Nebula is so big and bright that it can be seen without a telescope toward the constellation of the Archer (Sagittarius). The majestic nebula is filled with hot gas and the home for NGC an open cluster
Earth Call me crazy but. If technology gets to the point where Space Shuttle flights are as common as airplane flights, I will be the first to buy a ticket just to see the Earth from space and experience zero gravity.