science
It Looks Like There’s a Second, Bigger Impact Crater Under Greenland’s Ice

Scientists have spotted a potential asteroid crater in Greenland just 114 miles away from another one announced a few months ago. But the newest crater is even larger—it would be the 22nd largest on Earth. Read More >>

saturn
The Frequency of Asteroid Impacts Jumped Just Before the Dinosaur Age, New Research Suggests  

By comparing the age of impact craters on the Moon to those on Earth, researchers say they have discovered a surge in the rate of asteroid strikes starting around 290 million years ago—a finding that runs contrary to scientific convention. And indeed, not everyone is convinced by the evidence. Read More >>

space
Bennu Is Now the Smallest Object Ever Orbited by a Spacecraft

The new year has brought important milestones for two space missions—but only one of them deals in the very survival of the human species. Read More >>

space
NASA Spacecraft Spots Signal of Water on Asteroid Bennu

NASA’s OSIRIS-REx spacecraft has already detected evidence of water on its target, the asteroid Bennu, just a week after arriving. Read More >>

space
NASA’s Asteroid-Sampling Spacecraft Has Arrived at Its Target

NASA’s OSIRIS-REx arrived today at its target asteroid, Bennu, an important step on its mission to collect a sample from an asteroid and return it to Earth. Read More >>

geology
A Massive Impact Crater Has Been Detected Beneath Greenland’s Ice Sheet

An unusually large asteroid crater measuring 19 miles wide has been discovered under a continental ice sheet in Greenland. Roughly the size of Paris, it’s now among the 25 biggest asteroid craters on Earth. Read More >>

space
Study Finds Weird Interstellar Object ‘Oumuamua Isn’t As Big As We Thought

Scientists have learned more about ‘Oumuamua, the hunk of matter that is the first known interstellar object to ever be detected by scientists within the boundary of the solar system. Specifically, observations performed by researchers using the Spitzer Space Telescope and published in The Astronomical Journal have determined that prior observations likely established too generous an upper boundary on how large it could be. Read More >>

space
NASA’s OSIRIS-REx Spacecraft Captures Stunning View of Asteroid Bennu Ahead of Arrival

More than two years after its launch, NASA’s OSIRIS-REx spacecraft has beamed back what the space agency is calling a “super-resolution” view of the asteroid Bennu. OSIRIS-REx is NASA’s exciting mission to near-Earth asteroid 101955 Bennu, which the spacecraft is set to reach in about a month, to collect and bring back a sample to help scientists better understand the origins of the Solar System. Read More >>

space
Hayabusa2’s Mission to Touch Down on the Asteroid Ryugu Has Been Delayed Until 2019

The Japan Aerospace Exploration Agency (JAXA) has delayed the touchdown of the main section of the Hayabusa2 probe on the asteroid Ryugu from this month until January 2019, Nature reported, after mission scientists determined that the Ryugu’s surface is rougher than expected and the landing needs more planning time. Read More >>

space
A Third Probe Landed on Asteroid Ryugu—but It Had Just 16 Hours to Live

A German-French probe called MASCOT was sent to the surface of Ryugu, an asteroid located 190 million miles from Earth, to collect valuable data. But it needed to work fast—the shoebox-sized probe had only 16 hours to live. Read More >>

space
Japan’s Hayabusa2 Spacecraft Successfully Deploys Landers to Asteroid Ryugu’s Surface

Two landers from the Japan Aerospace Exploration Agency (JAXA) have successfully touched down on the Ryugu asteroid after separating from the Hayabusa2 probe in orbit, and have begun transmitting images from the space rock’s surface. Read More >>

space
Our Solar System’s Largest Asteroid Is Covered in Ice Volcanoes

We usually associate volcanoes with extreme heat. But new results demonstrate that the Solar System’s largest asteroid, Ceres, is covered in volcanoes that have spewed ice throughout their history. Read More >>

space
Mission to Slam Spacecraft Into Asteroid Has Begun Final Design and Construction

A mission to deflect asteroids that might threaten Earth has begun its final design and assembly phase, according to a news release. NASA is testing a technique meant to protect the planet from an impending asteroid strike, and it’s a satisfyingly simple one: They’re gonna slam the ship into the rock. Read More >>

space
Hayabusa2 Spacecraft Captures First Close-Up Image of Ryugu Asteroid

Earlier today, Japan’s Hayabusa2 spacecraft came tantalisingly close to Ryugu, offering an unprecedented view of the asteroid’s boulder-strewn surface. Read More >>

animals
The Asteroid That Killed The Dinosaurs Also Jumbled Shark Evolution

More than 500 different shark species roam Earth’s oceans: from zippy little cookie-cutter sharks, to the iconic great white, to nightmarish goblin sharks, to 25-foot-long, filter-feeding basking sharks. And it seems that the current equilibrium of shark species we see today arose after the Cretaceous–Paleogene mass extinction event 66 million years ago, according to new research. Read More >>