New research suggests that a massive, unidentified object might have passed through our Solar System billions of years ago, ...

Amazing views of Jupiter over the years via the Hubble Space Telescope. The moons of Io, Ganymede and hazy Uranus can be ...

Throughout much of January and February, Venus, Mars, Jupiter, Saturn, Uranus and Neptune will be visible splayed out in a long arc across the heavens, with Venus, Mars, Jupiter and Saturn being ...

For the first time, astronomers have traced a fast radio burst (FRB) to the outskirts of an ancient, dead, elliptical ...

Six planets – Venus, Mars, Jupiter, Saturn, Uranus and Neptune – are currently ... namely the alignments of galaxies. Observing galaxies in the very early universe is difficult because they ...

In the years following the launch of NASA's Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the universe. But only one galaxy stands out as the most important nearby ...

One day, however, the two galaxies may collide, forming a giant, egg-shaped elliptical galaxy. But that great merger won't happen for billions of years. Mark is an award-winning journalist and the ...

The magnificent Andromeda galaxy (Messier 31), stands out as the most important nearby stellar island to our Milky Way, and ...

"Andromeda looks like a transitional type of galaxy that's between a star-forming spiral and a sort of elliptical galaxy dominated by aging red stars," said Weisz. "We can tell it's got this big ...