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 […]

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 […]

NASA’s Galileo spacecraft caught Jupiter’s moon Io, the planet’s third-largest moon, undergoing a volcanic eruption. Locked in a perpetual tug of war between the imposing gravity of Jupiter and the smaller, consistent pulls of its neighboring moons, Io’s distorted orbit causes it to flex as it swoops around the gas […]

By varying the initial inventory of volatile elements in a model of the geochemical evolution of rocky planets, researchers obtained a wide range of outcomes, including several scenarios in which a lifeless rocky planet around a sun-like star could evolve to have oxygen in its atmosphere. Credit: Illustration by J. […]

Neptune and Uranus are the outermost two planets of our solar system and two gas giants. Credit: NASA Uranus and Neptune both have a completely skewed magnetic field, perhaps due to the planets’ special inner structures. But new experiments by ETH Zurich researchers now show that the mystery remains unsolved. The two large […]

The SwRI-led Ultraviolet Spectrograph (UVS) orbiting Jupiter aboard NASA’s Juno spacecraft allowed scientists to discover faint aurora features likely triggered by charged particles coming from the edge of Jupiter’s massive magnetosphere. This occurrence, shown in the false color series of images recorded 30 seconds apart (red panels), displays the characteristically […]

Raised ridges spidering across the floor of a Martian crater were likely created by runoff from a long-lost glacier that once draped the planet’s southern highlands. Credit: NASA An ancient crater lake in the southern highlands of Mars appears to have been fed by glacial runoff, bolstering the idea that the Red […]

ANIMATION Jovian jet streams above the cloud tops measured using the aftermath of comet collision. Working with a team led by French astronomers, Southwest Research Institute scientists helped identify incredibly powerful winds in Jupiter’s middle atmosphere for the first time. The team measured molecules exhumed by the 1994 impact of comet […]

ANIMATION Using the Atacama Large Millimeter/submillimeter Array (ALMA), in which the European Southern Observatory (ESO) is a partner, a team of astronomers have directly measured winds in Jupiter’s middle atmosphere for the first time. By analyzing the aftermath of a comet collision from the 1990s, the researchers have revealed incredibly powerful […]

Technicians carefully lower the Mars Oxygen In-Situ Resource Utilization Experiment (MOXIE) instrument into the belly of the Perseverance rover. (Image credit: NASA/JPL-Caltech) Having safely landed on Mars on Feb. 18, NASA’s newest rover, Perseverance, is just beginning its scientific exploration of the Red Planet. But sometime in the next few […]