Where did the ingredients for life on Earth come from? A team of astronomers has found a crucial new link: the observation of essential "prebiotic" molecules around a still-forming star.
Today, NASA astronauts Victor Glover and Mike Hopkins are stepping outside the International Space Station for Glover's first spacewalk, or extravehicular activity (EVA).
NASA's asteroid-sampling OSIRIS-REx probe will spend a couple of extra months at its target space rock before heading back to Earth.
This hazy spiral galaxy is one of the largest in the Virgo cluster — a collection of more than 2,000 galaxies.
Newly published observations from space are showing researchers more about the nature of Earth's lightning storms, including whimsically named phenomena such as "blue jets" and "elves."
Ever ridden a teacup ride at a state fair? If so, you might have a small taste of life in a whirling, twirling sextuply-eclipsing sextuple star system.
The planets around a star called TOI-178 know how to keep a beat — so smoothly, in fact, that scientists were able to discover new alien worlds by deciphering the system's music.
Space.com recently talked with Breakthrough Initiatives executive director Pete Worden about a signal coming from the vicinity of Proxima Centauri, and about the search for alien life more generally.
Most stars in the universe today are found in massive galaxies called ellipticals, named for their stretched-out-circle shape.
An ongoing investigation of the December collapse of the iconic radio telescope at Arecibo Observatory in Puerto Rico offers early evidence a manufacturing issue may have contributed to the failure.
The South African Astronomical Observatory in Cape Town is the oldest permanent observatory in the southern hemisphere: it turned 200 in 2020.
Albert Einstein’s theory of general relativity profoundly changed our thinking about fundamental concepts in physics, such as space and time.
Data from one of Cassini's last flybys of Titan probed the depths of Kraken Mare to better understand the moon's alien chemistry.
A new composite image of Jupiter's atmosphere shows a hot spot glowing brightly in infrared wavelengths.
Particles called axions may be the reason the 'Magnificent 7' cluster of neutron stars emits extreme X-rays.
Stars snacking on their companions outside the Milky Way have been precisely mapped and measured for the first time.
Water may have recently flowed within meteorites, suggesting the asteroids they broke off from may bear ice, a new study finds.