Four new studies confirm that NASA's DART mission, which crashed a rocket into the asteroid Dimorphos, changed the asteroid's trajectory and could potentially save Earth one day, given enough time to prepare.
NASA astronaut Josh Cassada photographed a gorgeous green aurora from space, capturing the impacts of a solar storm that swept over our planet.
On March 1 and 2, Jupiter and Venus will appear side by side in the night sky in an event called a conjunction, which is visible without a telescope or binoculars.
A trio of enormous asteroids, including two 'potentially hazardous' ones, will cross Earth's orbit around the sun this week, according to NASA. Here's what that means.
Scientists detected a cloud of gas sculpted into a wonky tadpole shape near the Milky Way's center, possibly pointing to a rare intermediate-mass black hole.
The U.S. military shot down three unidentified objects in a single weekend. Why are America's skies so filled with UFOs all of a sudden?
A long, looping filament of plasma snapped over the sun's north pole, creating a 'polar vortex' that scientists can't explain.
A broken hill, an ancient crater and the human tendency to find faces everywhere may explain the teddy bear on Mars.
The Danuri spacecraft arrived in lunar orbit in Dec. 2022, and its first image dump is out of this world.
An amateur astronomer witnessed the moment that the green comet C/2022 E3 had part of its tail blasted away by a coronal mass ejection.
The green comet C/2022 E3 (ZTF) will make a close approach to Earth on Feb. 1/Feb. 2 before sailing off into deep space, possibly never to return.
New time-lapse images of the beautiful Butterfly Nebula come closer to explaining its spectacular strangeness.
A minor G1-class geomagnetic storm will hit Earth right as our planet reaches perihelion, its closest point to the sun.
From "rogue" black holes cruising the cosmos to one of the oldest black hole ancestors in this universe, this year's findings truly sucked us in.
Cosmic cliffs, smiling suns and Martian "polygons" made this year a blast for stargazers everywhere.
UFO reports from U.S. military personnel are flooding the government's new All-Domain Anomaly Resolution Office (AARO).
While tracking an incredibly bright gamma-ray burst to its origins, scientists uncovered a hidden explosion that could upend decades of research.
The 'Cold Moon,' the final full moon of 2022, will appear to swoop in front of Mars in a phenomenon called lunar occultation.
From nebulas and black holes to baby star nurseries and ancient collisions, the universe has never looked more beautiful thanks to NASA's $10 billion-telescope.
A renegade meteor flared in Earth’s atmosphere in the wee hours of Nov. 19, creating a bright green fireball in the sky over the eastern US and Canada.
Earth is about to pass through the debris trail left behind 30 years ago by comet Tempel-Tuttle. Here's how to catch the sky show.
A new study of white dwarfs with "polluted" atmospheres is causing scientists to rethink how and when planets form.
An uncharted region of space known as the "zone of avoidance" lurks behind the Milky Way's center – and astronomers just found an enormous, multi-galaxy structure there.