Massive dying stars explode in supernovas and emit large amounts of radiation. The radiation would be…
Category: Earth Sky
Black hole is ‘underachiever,” despite jets and high radiation
View larger. | This is H1821+643, a quasar containing a supermassive black hole, captured in a…
Comet Hale-Bopp closest to the sun 27 years ago today
Comet Hale-Bopp with its prominent dust (white) and plasma (blue) tails. Photo via E. Kolmhofer, H.…
5 myths about our natural satellite
View larger. | Here’s a unique view of the moon as it moved in front of…
Older brown dwarfs are more likely to be lonely
View larger. | Artist’s concept of a brown dwarf. It’s an object that’s too massive enough…
How 2 billion craters on Mars were created by 1 asteroid
This is the Corinto crater in Elysium Planitia on Mars. A new study using data from…
5000th comet for sun-observing SOHO spacecraft
The circled object is the 5,000th sungrazing comet discovered by the sun-observing SOHO spacecraft. It’s seen…
BREAKING! Milky Way’s black hole in new image
The European Southern Observatory released this new image of the Milky Way’s black hole today (March…
Does Jupiter’s moon Europa have a habitable ocean, or not?
View larger. | Jupiter’s ocean moon Europa as seen by NASA’s Juno spacecraft. Image via NASA/…
Ice grains from ocean moons could hold tiny traces of life
View larger. | Saturn’s moon Enceladus has a subsurface ocean of water beneath an outer ice…