The crescent Moon appears to plow through the Pleiades cluster this morning with occultations visible across North and ...

Do not miss the last chance this year to witness the Moon cross the glittering Pleiades in a rare celestial alignment visible across North and Central America.

Orion, Pleiades, and Hyades may be stages of one star system’s life, revealing how star clusters form and change.

Elizabeth II was the longest-serving monarch in English history—but things weren’t exactly supposed to happen the way they ...