Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new ...

By looking at the shifting of stars in photos from the New Horizons probe, astronomers have calculated its position in the ...

But researchers have just demonstrated that once you are far away from the planets of the Solar System, there might be a ...

Could a rogue star disrupt our peaceful solar system? Scientists are keeping a close eye on the galactic neighborhood, and ...

Mercury is the month's highlight, reaching greatest elongation July 4. Also on show in the Southern Hemisphere: Mars, Saturn, ...

Astronomers have discovered over 100 new alien worlds so far this year — some many light-years away from Earth — that ...

Can we really reach another solar system? This video explores how humanity might colonize Proxima Centauri B, our closest potentially ... of it - might one day launch missions beyond our own star.

The answer: There are approximately 2,000,000,000,000 galaxies in the universe – that’s 2 trillion. Astronomers don’t know ...

The larger a star is, the more rapidly it burns through its hydrogen. Some of the largest known stars — such as those with masses 40 times that of the sun — will live just 1 million years.

Nearly 400 years ago, Galileo looked at the Pleiades star cluster through his telescope and noticed that the seven or so ...

Astronomers have discovered a "teenage vampire" dead star in the process of devouring a companion star during a short-lived, "missing link" phase of its evolution.