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

The Orion Nebula Cluster is just 2.5 million years old. It's full of young stars and gas, actively forming new suns. Pleiades ...

The Orion Nebula, the Pleiades and the Hyades open clusters could represent the different phases of star clusters: baby, ...

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

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.

The Orion Nebula, the Hyades and the Pleiades are visible to the naked eye. The star clusters are obviously examples of different stages of development.

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

Eagle-eyed sky watchers will be able to catch Mercury, Venus, Jupiter, Saturn, Neptune and Uranus in the sky at the same time ...