Astronomers Find a Giant Cavity in Space, Hollowed out by an Ancient Supernova
Gaia’s 3-D mapping of the galaxy has revealed a cosmic bubble, with clues about how molecular clouds and stars form.
Gaia’s 3-D mapping of the galaxy has revealed a cosmic bubble, with clues about how molecular clouds and stars form.
A galaxy survey has shown us the origin of gamma rays from empty space.
Black holes have a pressure as well as a temperature, thanks to the thermodynamics of quantum gravity.
Above a certain mass, large stars don’t become supernovae. That limit might be lower than we thought.
An accidental discovery suggests that brown dwarfs are more common than we thought, and may solve the mystery of the brown dwarf desert.
A study of Kuiper belt objects points strongly to the existence of a super-Earth on the outer edge of our solar system.
A study of the interstellar bodie 2I/Borisov aruges that the Oort cloud may consist more of alien objects than solar system objects.
The Milky Way galaxy is our home, and yet in some ways, it is the least understood galaxy. One of the biggest challenges astronomers have is in understanding its large-scale structure. Because we’re in the midst of it all, mapping our galaxy is a bit like trying to map the size and shape of a …
Astronomers can determine the size of a black hole by the way it consumes nearby matter.
The birth of direct collapse black holes could be seen by radio telescopes in the near future.