"Our experiments provide clues to better understand JWST Europa observations and serve as a prelude to upcoming close-range investigations by Europa Clipper and ESA's JUICE spacecraft." ...

Look east around 4 a.m. local time, just before dawn, to see the slender form of the crescent moon climb above the horizon.

A rare lunar occultation, fading crescent moon, and an interstellar visitor make for a memorable week of stargazing in ...