Physicists think this might be the first of many hidden states of matter that could be uncovered using laser flashes.
NASA astronomers have detected one of the brightest explosions of X-ray energy ever seen, and they think it came from a greedy neutron star in the Sagittarius constellation.
The tiny planet Mercury scooted across the sun's face today (Nov. 11) for the last time until 2032, and skywatchers around the world had the chance to witness the rare celestial event.
SpaceX launched 60 Starlink satellites into orbit on its most flown Falcon 9 rocket yet, which made a historic fourth launch and landing on Monday (Nov. 11).
The tiny planet Mercury will be visible from Earth as it moves across the sun, in an event known as a transit.
The Mercury transit on Nov. 11 will be accessible to amateur astronomers, as long as they have the right equipment to view it safely.
Beyond the outer edge of the solar system, mysterious, unknown worlds await by the thousands. Astronomers can now finally find these exoplanets. But will we find another Earth?
Curiosity is the last functioning rover on Mars, and its lonely mission has taken the robot to a steep mountain in the middle of a vast crater.
A new prize for young female mathematicians honors Maryam Mirzhakhani, an Iranian mathematician who died of breast cancer at age 40.
What's the recipe for a living planet? A new paper suggests that the right number of impacts is a key ingredient.
Astronomers have just observed a ghostly nebula of gas resembling the shape of an hourglass, surrounding a known galaxy. This ghoulish structure has dwarfed the galaxy it is surrounding.
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