Mysterious dark matter makes up 85 percent of matter in the universe, and of the remaining 15 percent, scientists couldn’t ...

Astronomers have long sought to understand where half of the ordinary matter in the Universe is hiding. Half of the 15% of ...

Astronomers may have found the long-missing half of the universe's regular matter—and it appears to have been right under our noses all this time. Models of how the universe has evolved since the Big ...

The discovery of Eos, the closest known molecular cloud to Earth and one of the largest structures in the night sky, hints at ...

The Oracle-M spacecraft are specifically designed to track objects in cislunar space, the vast region between Earth and the ...

This gas needs an enormous amount of energy to shine — more than normal stars can supply. The discovery, based on data from ...

The National Science Foundation’s Daniel K. Inouye telescope debuted a close-up of the sun captured by its new, ...

For decades, astronomers were certain that half of the ordinary matter in the universe — protons and neutrons, the building ...