Plate tectonics give Earth its mountains, earthquakes, continental drift and maybe even helped give rise to life itself. But ...

Venus and Saturn will be in conjunction this weekend, appearing side by side in the night sky during January's post-sunset ...

Alignments of five or more planets are rare—there will be two more featuring five or more planets this year, but after that ...

These are the planets that will be visible with the naked eye. A rare parade of planets will light up the night sky ...

New observational data from the James Webb Space Telescope and simulation models have confirmed a new type of planet unlike ...

The Red Planet will be at its closest point to Earth, also known as perigee, on Jan. 12 and will be exactly opposite the sun ...

At 8:07 p.m. Monday, stargazers in Chicago will see Mars disappear behind the moon and reappear on the other side of the moon ...

"What If is an epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a ...

Six planets will be in alignment this weekend, with four of them shining bright in one sweeping view. What to know about the planet parade.

If you like the smell of spring roses, the sounds of summer bird song, and the colors of fall foliage, you have the ...

Venus, Saturn, Jupiter and Mars will appear to line up and be bright enough to see with the naked eye in the first few hours ...

"What If is an epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a ...