NASA is upgrading the ISS communication system with the first end-to-end laser relay system.
We're rapidly learning that our Solar System, so familiar to us all, does not represent normal. A couple of decades…
There's an unusual object near the Milky Way's heart that astronomers call "The Brick." It's a massive cloud of gas…
All organisms communicate information with their cells using signaling molecules. Add up all these communications, and it's the equivalent of…
A gap in astronomical knowledge is Cosmic Dawn, a time when the first stars in the Universe formed, ending the…
Blazars occupy an intriguing spot in the cosmic zoo. They're bright active galactic nuclei (AGN) that blast out cosmic rays,…
Astronomers have measured the Universe's expansion rate and found that various methods don't agree, and their error bars don't overlap.…
Pulsars are the lighthouses of the universe. These rotating dead stars shoot twin jets of radiation from their poles, usually…
In 1987, a supernova suddenly appeared in the Large Magellanic Cloud and was studied by astronomers worldwide. Although the detonating…
For generations, humans have dreamed, speculated, and theorized about the possibility of journeying to distant stars, finding habitable planets around…