The gigantic bubble was created by multiple supernova explosions, and researchers finally know what its magnetic field may look like.
A radar system less powerful than a household microwave oven produced some of the best pictures of the moon ever captured.
A new time-lapse image shows two major sunspot groups moving across the surface of the sun in December 2022, when the number of solar splotches also skyrocketed to an eight-year high.
A new search for alien signals focuses on planetary transits, when exoplanets pass right in front of their suns.
Mysterious "halos" of rock surrounding cracks in a Martian crater may be made of water-rich opal gemstones, a new study suggests.
Black holes form natural time machines that allow travel to both the past and the future. But don't expect to be visiting dinosaurs any time soon.
Astronomers recently detected a massive explosion on the far side of the sun, which may have spat out one of the most powerful flares the sun can produce.
Reference A look at the phases of the moon, from new moon to full moon, including's tonight's lunar phase.
In quantum physics, particles exist in many states at once until you measure them. Can reality really work that way?
A minor G1-class geomagnetic storm will hit Earth right as our planet reaches perihelion, its closest point to the sun.
The first full moon of the new year will be a 'micromoon,' with the moon at its farthest point from Earth.
The Quadrantid meteor shower is considered one of the best to view all year. Here's how to maximize your chances of seeing shooting stars.
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.
Nuclear fusion, lab-simulated wormholes, and ramming distant asteroids, here are the biggest and best physics stories of the year.
Cosmic cliffs, smiling suns and Martian "polygons" made this year a blast for stargazers everywhere.
Metallic spheres zooming past military jets, mysterious signals inside the world's largest telescope, and theories on why we have yet to make contact.
Solar activity was on the rise this year, which meant an abundance of amazing solar storm-related stories. Here are our favorites.