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Celestial bodies

This image of the Cornelia Crater on Vesta shows lobate deposits (right) and curvilinear gullies (highlighted by the short white arrows, left). According to a newly published paper in The Planetary Science Journal, ice underneath the surface of an airless world could be excavated and melted by an impact, such as from a meteoroid impact, and then flow along the walls of the impact crater as liquid brines to form these distinct surface features.

New Study Sheds Light on Mysterious Surface Features of Airless Worlds

Categories Earth, Energy & Environment, Life & Non-humans

An artist rendering of an astronaut working on the lunar surface during a future mission. Credits:Credit: NASA

Lunar Atmosphere Mystery Solved: Meteorite Impacts Reign Supreme

Categories Space

Panels a, b, and c each show stereographic image pairs of the asteroid Dinkinesh taken by the NASA Lucy Spacecraft’s L’LORRI Instrument in the minutes around closest approach on Nov. 1, 2023. The yellow and rose dots indicate the trough and ridge features, respectively. These images have been sharpened and processed to enhance contrast. Panel d shows a side view of Dinkinesh and its satellite Selam taken a few minutes after closest approach. Credit: NASA/SwRI/Johns Hopkins APL/NOIRLab.

Lucy Spacecraft Discovers Unexpected Contact Binary Orbiting Asteroid Dinkinesh

Categories Space

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