Around 12,800 years ago, Earth collided with fragments of a disintegrating comet, triggering Younger Dryas climate change; this event created environmental conditions at Abu Hureyra, Syria, that ...

The Permanent Spot (PS) and the early Great Red Spot (GRS): (a) drawing of the PS by G.D. Cassini, January 19, 1672; (b) drawing by S. Swabe on May 10, 1851, showing the GRS area as a clear oval with ...

K2-18 is a red dwarf located approximately 111 light-years away in the constellation of Leo.. Also known as EPIC 201912552, the star hosts two massive exoplanets: K2-18b and K2-18c. First discovered ...