Far below the gaseous atmospheric shroud on Saturn s largest moon, Titan, lies Kraken Mare, a sea of liquid methane. Cornell University astronomers have estimated that sea to be at least 1,000-feet deep near its center - enough room for a potential robotic submarine to explore.
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IMAGE: This image of a glacier on Mars shows the abundance of boulders within the ice.
High-resolution imaging of the surface of Mars suggests that debris-covered glacier deposits formed during multiple. view more
Credit: Joe Levy/Colgate University
In a new paper published today in the
Proceedings of the National Academies of ScienceS (
PNAS), planetary geologist Joe Levy, assistant professor of geology at Colgate University, reveals a groundbreaking new analysis of the mysterious glaciers of Mars.
On Earth, glaciers covered wide swaths of the planet during the last Ice Age, which reached its peak about 20,000 years ago, before receding to the poles and leaving behind the rocks they pushed behind. On Mars, however, the glaciers never left, remaining frozen on the Red Planet s cold surface for more than 300 million years, covered in debris. All the rocks and sand carried on that ice have remained on the surface, says Levy. It s like putting the ice in
A new study, led by a theoretical physicist at Berkeley Lab, suggests that never-before-observed particles called axions may be the source of unexplained, high-energy X-ray emissions surrounding a group of neutron stars.
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SAN ANTONIO Jan. 13, 2021 NASA has extended the Juno mission to explore Jupiter through September 2025, expanding the science goals to include the overall Jovian system, made up of the planet and its rings and moons. In addition to continuing to explore our Solar System s largest planet, NASA s planetary orbiter will rendezvous with three of the most intriguing Jovian moons. Since its first orbit in 2016, Juno has delivered one revelation after another about the inner workings of this massive gas giant, said Southwest Research Institute s Scott Bolton, Juno principal investigator. With the extended mission, we will answer fundamental questions that arose during Juno s prime mission while reaching beyond the planet to explore Jupiter s ring system and largest satellites.