Hubble Space Telescope imagery Neptune has revealed that the planet's clouds are disappearing. Credit: NASA Goddard Space Flight Center ...

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

The alignment of seven planets in the night sky has captivated observers for centuries, inspiring awe and curiosity. This ...

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 visible ... However, if a large galaxy or cluster of galaxies passes between our line of sight with a much ...

Our galaxy, while not small, isn't nearly as big as Andromeda. We harbor some 100 to 400 billion stars. One day, however, the two galaxies may collide, forming a giant, egg-shaped elliptical galaxy.

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 ...

Astronomers have discovered an extraordinary new giant radio galaxy with plasma jets 32 times the size of our Milky Way.

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

Andromeda is the closest large galaxy to the Milky Way. And it is getting closer, as the two will merge in several billion years. It has been an object of study for centuries, but we have never ...