Asteroids
NASA Successfully Altered an Asteroid’s Orbit
The agency's DART mission exceeded expectations, marking the first time humans have changed the trajectory of a celestial body
NASA Successfully Crashed a Spacecraft Into Its Asteroid Target
The Double Asteroid Redirection Test (DART) is a first step toward defending Earth from threatening space rocks
The Dinosaur-Killing Asteroid May Have Had a Companion
A newly discovered crater suggests a second impact that would have triggered underwater landslides and tsunamis
Building Blocks of Life Found on Samples Collected From an Asteroid
The find suggests that amino acids could land on Earth on meteorites
Mercury's Cratered Crust May Hold Glittering Gemstones
Fragments of a graphite shell from the planet's past and a series of violent meteorite impacts may have combined to form sparkling diamonds
Asteroid That Decimated the Dinosaurs Struck in Spring
Clues from fossil fish help scientists pinpoint the season when Earth’s fifth mass extinction began
Was Georgia O'Keeffe's Genius Appreciated Outside of America? And More Questions From Our Readers
You've got questions. We've got experts.
Ten Dazzling Celestial Events to See in 2022
Stargazers in North America can look forward to meteor showers, lunar eclipses and a stunning multi-planet lineup this year
This Metal-Rich, Potato-Shaped Asteroid Could Be Worth $10 Quintillion
In August, NASA is sending an orbiter to the space object, which may be the partial remains of planet-forming material made of nickel and iron
What Five Grams of 'Primordial' Stardust From an Asteroid Tell Scientists About How the Early Solar System Formed
Ryugu is a carbonaceous, water-rich space rock with a unique, dark coloration and porous composition
The Very Real Effort to Track Killer Asteroids and Comets
In "Don't Look Up," researchers warn authorities about a comet hurtling towards Earth. Such a scenario isn’t just science fiction
The Ambitious Idea to Study the Evolution of a Comet
Researchers want to send a spacecraft near Jupiter to join up with a chunk of rock and ice as it’s flung toward the sun
A Chip Off the Moon May Be Tailing Earth on Its Orbit Around the Sun
Researchers suspect the fragment may have been debris from a cratering event on the lunar surface
NASA's Lucy Probe Asteroid Mission Will Study Fossil-Like Origins of Our Solar System
The spacecraft launches on October 16 and is expected to reach its target by 2027
In 2182, It Could Be Cloudy With a Chance of Asteroid
Scientists calculate Bennu will come close, but will most likely miss Earth in about 160 years
Dinosaurs May Have Been Declining Before the Asteroid Struck Earth
The researchers say the cataclysmic impact may have simply been the final nail in the dinos’ coffin
New Research of Impact Crater Blows Away Previous Estimates of Its Age
Scientists say the Boltysh crater in Ukraine formed well after the impact in Mexico that caused the dinosaurs to go extinct
Fireball Illuminates Skies Across East Coast of Florida
The asteroid fragment weighed 900 pounds and hit Earth's atmosphere at 38,000 miles per hour
How the Dinosaur-Killing Asteroid Spurred the Evolution of the Modern Rainforest
New evidence from fossil plants shows today’s South American rainforests arose in the wake of Earth’s fifth mass extinction
Sending DNA From Earth's 6.7 Million Species to the Moon to Safeguard Life
Researchers propose constructing a 'lunar ark' to provide our planet with a 'reset button' in the event of a world-ending catastrophe
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