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

Nearly all galaxies in the universe are either spiral or elliptical in shape, but very rarely one appears in the shape of a ring. How does it form? In this composite view of the Cartwheel galaxy ...

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

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

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 ...

On Tuesday evening (January 21), six planets will line up in the night's sky – Mars, Jupiter, Neptune, Saturn, Uranus and Venus. Best viewed in clear skies free of cloud, the individual ...

Six planets – Venus, Mars, Jupiter, Saturn, Uranus and Neptune – are currently ... However, if a large galaxy or cluster of galaxies passes between our line of sight with a much more distant ...

Hubble Space Telescope mapped Andromeda, revealing a chaotic history shaped by mergers. A 2.5-billion-pixel mosaic shows 200 ...

The Hubble Space Telescope completes a high-resolution portrait of our galaxy's gorgeous neighbor, which will help scientists better understand our Milky Way.

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

Rethinking the Underlying Trigger of Quasar Jets Building on the groundbreaking 2020 discovery of newborn jets in several ...