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...
After traveling through space for more than two years and 1.2 billion miles (2 billion km), NASA’s OSIRIS-REx (Origins, Spectral Interpretation, Resource...
New research from Brown University reinforces the idea that grooves crisscrossing the surface of Phobos, the larger of the two Martian moons, were made...
An international team of geoscientists from the United States, Canada and Europe has discovered a large impact crater beneath the Hiawatha Glacier in remote...
