The number of rocky extrasolar planets being discovered continues to increase, but so too does the apparent diversity of such worlds.

Iron meteorites show the first bodies of the early solar system were 83% to 92% dry rock, with water arriving millions of ...

Astronomers have discovered a possible mechanism by which the black holes at the hearts of galaxies could be influencing the humongous, faint reservoir of gas surrounding their host galaxies, ...

James Webb cannot see chariklo’s rings directly but their shadows revealed that something is happening to them.

Thousands of planets have been discovered beyond our solar system, offering clues to where life might thrive and whether ...

The crater, named after geologist and lunar surface expert Tom McGetchin, spans more than two football fields wide ...

Often more than 100 million times dimmer than objects visible to the unaided eye, TNOs are so small that even with NASA’s ...

Astronomers are reporting the discovery of a retrograde planet around an M-dwarf star. This is a type of star smaller and ...

Decoding the Double Moon Hypothesis from Solar System Formation History—The moon floating in the night sky is such a "given" presence.However, tracing its origins reveals a story of evolution that is ...

ESA JUICE Earth flyby arrives Sunday, September 28 at 7:45 a.m. ET: the Jupiter-bound probe will skim 5,369 miles from Earth's surface and capture a free 2.2-mile-per-second speed boost via gravity ...

The BepiColombo mission, by the European Space Agency and the Japan Aerospace Exploration Agency, is only the third to study our smallest planetary neighbor ...