Our sun is a lonely star. At least half the stars in our galaxy have binary companions. This was nicely illustrated in the ...

"See To Believe uncovers the forgotten, mind-blowing facts that will leave you questioning everything. Follow wild stories of mysterious creatures, ancient civilizations, how tech impacts our world in ...

A rare parade of planets will light up the night sky throughout January. Six planets will be in alignment for the rest of the ...

Stellaris turns your eyes to the stars in a science fiction strategy game that will be about more than just building empires in the skies.

The European Space Agency's Milky Way-mapper Gaia has completed the sky-scanning phase of its mission, racking up more than 3 ...

Astronomers have long tried to track down how elements like carbon, which is essential for life, become widely distributed ...

Active galaxy 1ES 1927+654, circled, has exhibited extraordinary changes since 2018, when a major outburst occurred in visible, ultraviolet, and X-ray light. The galaxy harbors a central black hole ...

T he European Space Agency’s Gaia mission has almost completely depleted the cold gas propellant that kept it spinning and able to scan the sky, so it has decided to nominally end science operations ...

In this special Hubble image 23 years in the making, the sparkling spiral galaxy UGC 10043 reveals the secrets of its ...

This marks the first-ever detection of X-ray spectral lines in a binary black hole system, offering a novel window into the ...

Chile's Atacama Desert is home to some of the best Earth-based observatories, though an energy company is throwing a wrench ...

The newcomer replacing Pluto presently goes by “Planet Nine.” If and when it finally shows up, it will get the honor of a ...