Changing altitude of the Long March 5B rocket now in uncontrolled descent back to Earth. Credit: orbit.ing-now.com A large piece of space debris, possibly weighing several tonnes, is currently on an uncontrolled reentry phase (that’s space speak for “out of control”), and parts of it are expected to crash down to […]

Evolution of earthquake-induced tsunami in a bay traversed by a strike-slip fault. Colors indicate sea-surface height relative to undisturbed water level; wave height may exceed 2 m in some places. Top: Instantaneous tsunami generation phase coincident with earthquake propagation; Middle: postseismic tsunami generation phase, in which gravity-driven tsunami waves dominate; […]

Project Artemis, NASA’s long-awaited plan for sending astronauts to the Moon for the first time since the Apollo Era, has taken many steps forward. Aside from the development of the Space Launch System (SLS), the Orion spacecraft, and the elements that will make up the Lunar Gateway, NASA recently awarded SpaceX with the contract to build […]

The meteorite studied in this work, named Miles, weighed 265 kg when it was discovered on a farm in Queensland, Australia, in 1992. This photo shows a 20-centimeter slice of the Miles meteorite loaned by the Harvard Museum of Natural History collection. Credit: Clara Maurel/MIT The signatures of ancient magnetic […]

NASA’s Perseverance Mars rover took a selfie with the Ingenuity helicopter, seen here about 13 feet (3.9 meters) from the rover. This image was taken by the WASTON camera on the rover’s robotic arm on April 6, 2021, the 46th Martian day, or sol, of the mission. Credit: NASA/JPL-Caltech/MSSS   ANIMATION […]

This artist’s illustration of Yamatosaurus izanagii (center) represents its ancestry to more advanced hadrosaurs (in the background). Credit: Artwork by Masato Hattori An international team of paleontologists has identified a new genus and species of hadrosaur or duck-billed dinosaur, Yamatosaurus izanagii, on one of Japan’s southern islands. The fossilized discovery […]

Fundamentals such as how many hours are in a Venusian day provide critical data for understanding the divergent histories of Venus and Earth, UCLA researchers say. Credit: NASA 15 years of radar measurements provide new information on planet’s spin, internal structure. Venus is an enigma. It’s the planet next door and […]

The Hobby-Eberly Telescope. Credit: Marty Harris, McDonald Observatory, UT Austin The universe we see is only the very tip of the vast cosmic iceberg. The hundreds of billions of galaxies it contains, each of them home to billions of stars, planets and moons as well as massive star-and-planet-forming clouds of […]

Credit: Pixabay/CC0 Public Domain Diatoms are tiny unicellular plants—no bigger than half a millimeter—which inhabit the surface water of the world’s oceans where sunlight penetration is plenty. Despite their modest size, they are one of the world’s most powerful resources for removing carbon dioxide (CO2) from the atmosphere. They currently […]

Hubble Space Telescope observation of galaxy cluster Abell 3827. Credit: ESA/Hubble & NASA, R. Massey This detailed image features Abell 3827, a galaxy cluster that offers a wealth of exciting possibilities for study. It was observed by Hubble in order to study dark matter, which is one of the greatest puzzles […]