In February, six planets will align in the night sky — Saturn, Mercury, Neptune, Venus, Uranus, Jupiter and Mars — and be mostly visible to the naked eye. We find out how to see and more about this ...

The exoplanet HD 20794d swoops in and out of its habitable zone every few hundred days, making for an extreme climate.

Shaped like a megaphone, the upcoming mission will map the entire sky in infrared light to answer big questions about the ...

Though the planets are always “aligned,” seeing more than four in the sky is more uncommon. February’s lineup is a chance to ...

An extraordinary astronomical phenomenon will illuminate the sky as stargazers are urged to look up to catch a glimpse of the ...

Everybody Loves a Cluster with a Nebula This is NGC 2264, the Cone Nebula, and the Christmas Tree Cluster. The bright stars ...

HWO will be the first space telescope built to find potentially habitable planets and analyze their atmospheres for signs of ...

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

Californians watching the sky in February have the chance to view a parade of planets and a snow moon. The planetary alignment that began in January will continue into February, according to ...

Currently shining at its greatest brilliance for this current apparition, this dazzling evening "star" currently appears as a ...

As we discussed last month, late January and early February will provide a stage for a Planet Parade, with six planets lining up in the night sky. On February 1, we should see the crescent moon in ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...