The end-Cretaceous mass extinction 66 million years ago eradicated roughly 75% of the animal and plant species on Earth, including whole groups like non-avian...
White dwarfs are dense, burned-out remnants of normal stars. Due to their strong gravitational pull, surface atmospheres of these ancient objects should...
There’s always a lot of extraterrestrial dust floating down to Earth, but this dust is normally only a tiny fraction of the other dust in our atmosphere...
Astronomers using the NASA Infrared Telescope Facility have caught an active asteroid called (6478) Gault in the act of changing color — in the near-infrared...
Using several telescopes of the International Scientific Optical Network (ISON), astronomers have captured a series of images of the recently-discovered...
A 330-foot- (100 m) wide asteroid designated 2019 OK passed just 43,500 miles (70,000 km) from Earth on July 25, 2019. It was discovered by the Brazilian...
Fossil clams found in southwestern Florida contain ancient microtektites, tiny (about 200 μm in diameter) glass beads that form when the explosive impact...
Astronomers using the Zwicky Transient Facility (ZTF), a state-of-the-art camera at the Palomar Observatory in southern California, have spotted a very...
A 3,300-foot- (1 km) wide asteroid struck our planet 1.2 billion years ago, according to new research published in the Journal of the Geological Society.
An...
A duo of researchers from the School of Earth and Space Exploration at Arizona State University has made the first-ever measurements of ancient water contained...
A cometary building block has been discovered inside the LaPaz Icefield (LAP) 02342, a carbonaceous chondrite meteorite found in Antarctica in the 2000s.
An...
Metallic asteroids are the cooled cores of disrupted planetesimals. They originated early in the history of our Solar System when planets were beginning...
At a site dubbed Tanis in North Dakota’s Hell Creek Formation, paleontologists have unearthed an assemblage of exquisitely-preserved fossilized organisms...
Astronomers once thought asteroids were boring, wayward space rocks that simply orbit around the Sun. But recent observations show that asteroids are anything...
In June 2018, the Japanese Aerospace Exploration Agency (JAXA) spacecraft and sample return mission Hayabsua-2 arrived at the near-Earth asteroid 162173...
NASA’s Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer (OSIRIS-REx) mission made the first-ever close-up observations...
