Mars rock is going home

Mars rock is going home

Rohit Bhartia of NASA’s Mars 2020 mission holds a slice of a meteorite scientists have determined came from Mars. One of two slices will be used for testing a laser instrument for NASA’s Mars 2020 rover while it’s still on Earth; the other slice will...
Planet puzzles in nearby star system

Planet puzzles in nearby star system

Pictured: An artist’s impression of the trio of super-Earths discovered by a European team using the HARPS spectrograph on the ESO 3.6-metre telescope at La Silla, Chile, after 5 years of monitoring. The three planets, having 4.2, 6.7, and 9.4 times the mass of...
Mars rover looks closely at rocks

Mars rover looks closely at rocks

Star-shaped and swallowtail-shaped tiny, dark bumps in fine-layered bright bedrock of a Martian ridge are drawing close inspection by NASA’s Curiosity Mars rover. This set of shapes looks familiar to geologists who have studied gypsum crystals formed in drying lakes...