What would it have been like to witness the beginning of the universe?

Something wonderful happened about 13.8 billion years ago. Everything in the universe was created in an instant as an infinitesimally small point of energy: The...

When galaxies collide, size matters if you want to know the fate of our...

Our Milky Way and the Andromeda galaxy – two giant galaxies in our local patch of the universe – are heading for an immense...

NASA’s MAVEN selfie marks four years in orbit at Mars

Today, NASA’s MAVEN spacecraft celebrates four years in orbit studying the upper atmosphere of the Red Planet and how it interacts with the Sun...

Will the universe expand forever, or contract in a big crunch?

About a century ago, we didn’t even know that galaxies existed. Then, in the 1910s, astronomers figured out how to measure the distance to features...

Why starlight turns red escaping from black hole at heart of Milky Way

For the past 30 years, scientists at the European Southern Observatory have been investigating the motion of stars near the massive black hole at...

Gaia satellite detects a shake in the Milky Way

Scientists have found, through the analysis of Gaia data, substructures in the Milky Way that were previously unknown. The findings, which appeared when combining positions...

Matter falling into a black hole at 30 percent of the speed of light

A UK team of astronomers report the first detection of matter falling into a black hole at 30% of the speed of light, located...

How stars spin

Astrophysicists measure precise rotation pattern of sun-like stars for the first time Sun-like stars rotate up to two and a half times faster at the...

How to find a massive black hole formed at the birth of a galaxy

Black holes form when stars die, allowing the matter in them to collapse into an extremely dense object from which not even light can...

Closest planet ever discovered outside the solar system could be habitable with a dayside...

In August of 2016, astronomers from the European Southern Observatory (ESO) confirmed the existence of an Earth-like planet around Proxima Centauri – the closest...

Ice volcanoes on this dwarf planet generate enough material to fill one movie theater...

Every year throughout its 4.5-billion-year life, ice volcanoes on the dwarf planet Ceres generate enough material on average to fill a movie theater, according...

Magellanic Clouds may have had a third companion

Two of the closest galaxies to the Milky Way--the Large and Small Magellanic Clouds--may have had a third companion, astronomers believe. Research published today describes...

NASA’s newest planet hunter TESS shares first science image

NASA's newest planet hunter, the Transiting Exoplanet Survey Satellite (TESS), is now providing valuable data to help scientists discover and study exciting new exoplanets,...
NASA’s Hubble uncovers never-before-seen features around a neutron star

NASA’s Hubble uncovers never-before-seen features around a neutron star

An unusual infrared light emission from a nearby neutron star detected by NASA's Hubble Space Telescope could indicate new features never before seen. One possibility...

When is a star not a star?

Brown dwarfs can be more massive than astronomers previously thought The line that separates stars from brown dwarfs may soon be clearer thanks to new...