Two of the Moon’s Grand Canyons Were Formed in Just Ten Violent Minutes, New Study Suggests
Scientists say Vallis Schrödinger and Vallis Planck—dramatic trenches near the lunar south pole—were carved in a blast that unleashed 130 times the amount of energy in Earth’s global nuclear weapons inventory
Are Humans the Only Species to Drive Others to Extinction? And More Questions From Our Readers
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Astronomers Suspect Colliding Supermassive Black Holes Left the Universe Awash in Gravitational Waves
Radio telescopes tracking signals from spinning, ultra-dense stars point to ripples in the fabric of space
Astronomers Raise Odds of Asteroid Impact in 2032 to 2.3 Percent—Here’s Why You Shouldn’t Panic
The chance of a newly discovered space rock hitting Earth in about eight years was predicted at 1.6 percent last week. Though that number’s rising, experts say further research could bring it to zero
Check Out NASA’s New Image of the Brilliant Bullseye Galaxy, the Aftermath of a Rare Cosmic Collision
After a blue dwarf galaxy shot through it like an arrow, the large Bullseye now has nine rings—six more than any other galaxy known to scientists
See the First Stunning Images Taken by the Blue Ghost Lunar Lander on Its ‘Scenic Route’ to the Moon
The lander built by Firefly Aerospace has captured incredible views as it orbits Earth. Its next phase is an engine burn that will propel it toward lunar orbit
Mysterious ‘Chirping’ Waves Detected 100,000 Miles Above Earth Are Surprising Scientists
Chorus waves, quick bursts of energy known to occur relatively close to Earth and around other planets, were found in an unexpected part of the magnetosphere, according to a new study
NASA’s Starliner Astronauts Take Their First Spacewalk Together After Roughly Eight Months on the ISS
The nearly 5.5-hour feat set a record for astronaut Sunita Williams, who became the woman with the most time spent on spacewalks in history
An Amateur Astronomer Seemingly Spotted a New Asteroid. It Turned Out to Be a Tesla in Space
The car, launched in 2018 on a SpaceX rocket’s upper stage, is one of many human-made objects in deep space that could potentially be mistaken for natural celestial bodies
Scientists Discover Traces of Salt Water and Building Blocks of Life in NASA’s Samples From the Asteroid Bennu
Two new papers describe hints to a brine-filled environment on the 4.5-billion-year-old space rock and the presence of amino acids, offering clues to how early Earth got its ingredients for life
Curiosity Rover Spots Ancient Water Ripples on Mars, Hinting at a Past With Shallow, Ice-Free Lakes
The 3.7-billion-year-old formations in the planet’s Gale Crater suggest the presence of long-gone bodies of liquid water, with no ice covering the surface
How to See Six Planets Lined Up in the Night Sky This Month—and Glimpse a Rare Seven-Planet ‘Parade’ in February
While the planets are technically always “aligned” along the same plane in our sky, seeing so many at once is a special opportunity
Check Out the Hubble Space Telescope’s Stunning New View of the Andromeda Galaxy
The full image includes some 2.5 billion pixels compiled from observations spanning more than 1,000 orbits around Earth
Meteorite Crash in Canada Is Caught by Home Security Camera in Likely World-First Video Footage
The space rock—recorded with visuals and sound—landed where the homeowner had been standing just minutes earlier
The Moon Makes the List of the World’s Most Endangered Cultural Heritage Sites in 2025
Earth-bound landmarks ravaged by war, climate change, tourism and other threats also landed in the World Monuments Watch report
Two Private Landers Launch on a SpaceX Rocket, Aiming to Touch Down on the Moon
Built by Firefly Aerospace and Ispace, the pair of spacecraft will land separately in the moon’s northern latitudes, conduct science experiments and test new technology
Astronomers Found Strange, Accelerating X-Ray Pulses Coming From a Black Hole. They Might Be a Sign of an Orbiting White Dwarf
The dense stellar remnant would, if confirmed, be the closest known object to any black hole, according to preliminary research
New, Stunning Images of Mercury’s North Pole Will Help Scientists Study the Planet’s Mysterious Permanent Shadows
The BepiColombo spacecraft captured the photographs during its last flyby of Mercury, a maneuver necessary to propel the mission into orbit around the planet
A Novel ‘Kiss and Capture’ Event Gave Pluto Its Largest Moon, Charon, New Study Suggests
Researchers accounted for the previously overlooked structures of the dwarf planet and moon in computer simulations of a celestial collision
Did Colonial Americans Wear Wristwatches? And More Questions From Our Readers
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