New “unprecedented” animations of the Earth show how the planet’s surface has shifted and changed over the past 100 million years. These animations are the most detailed view of the history of Earth’s topography ever, depicting the rise of mountains, the development of basins, and the transport of large masses of sediments around the globe … Read more
The moon crashing into Earth may sound like an unrealistic doomsday scenario or the stuff of sci-fi disasters. But for some planets in other star systems, such catastrophic collisions may be common. New research published in the journal Monthly Notices of the Royal Astronomical Society uses computer simulations to show that collisions between exoplanets and … Read more
NASA’s Mars Reconnaissance Orbiter (MRO) has captured stunning images of almost perfectly round sand dunes on the surface of the Red Planet. While sand dunes of all shapes and sizes are common on Mars, circular dunes like these are a rare sight. The dunes appear as slightly asymmetrical splodges in the picture, which was taken … Read more
There’s a floating garbage dump orbiting Earth, and it’s getting fuller every year. Space debris — known colloquially as space junk — is the name that scientists give to the thousands of pieces of broken satellites and spacecraft that clog Earth’s orbit. Space junk can be as small as a paint fleck or as large … Read more
Glimpsed only occasionally at the hearts of massive clusters of galaxies, ultramassive black holes are some of the largest and most elusive objects in the universe. These black hole behemoths have masses exceeding that of 10 billion suns, making them far more monstrous than even the supermassive black holes found at the centers of galaxies … Read more
Astronomers studying a remote baby star have found a “missing link” that could finally explain the origins of water on Earth, a new study suggests. By training a powerful radio telescope at V883 Orionis, a protostar 1,300 light-years away from Earth in the constellation Orion, astronomers have spotted gaseous water with a chemical composition close … Read more
The shredded remnants of the first supernova ever recorded by humans — which appeared in the sky more than 1,800 years ago and vanished within eight months — rise from the cosmic grave in a stunning new image from the National Science Foundation’s NOIRLab. Tinged blood red and swirling around an invisible center of mass, … Read more
For the first time, astronomers have spotted enormous, galaxy-scale shock waves rattling the “cosmic web” that connects nearly all known galaxies. These cosmic waves could reveal clues about how the largest objects in the universe were sculpted. The discovery was made by stitching and stacking thousands of radio telescope images together, which revealed the soft … Read more
The asteroid Ryugu, which orbits the sun between Earth and Mars, contains many of the building blocks for life, a new analysis finds. The study, published Feb. 23 in the journal Science, is one of the first peeks at the samples from Ryugu brought back by Japan’s Hayabusa2 spacecraft in 2020. The mission is only … Read more
Researchers have finally pinpointed the likely origin of mysterious heartbeat-like signals spat out by the sun during solar flares. The findings could help us learn more about how potentially damaging solar storms are unleashed, a new study shows. Solar radio bursts are streams of electromagnetic radiation — made up mainly of radio waves, as well … Read more
