Earth’s blue sky is just one version of how the heavens appear. Join us on a journey to other planets and moons, where the skies come alive with alien colors, distant suns, and surreal landscapes.

All the planets orbit roughly along the same plane, known as an ecliptic plane, or arc across the sky if you are viewing it edge-on, according to NASA. NASA recommends observing the planet parade ...

NASA started giving tips for seeing a Parade of Planets in the our night sky in early January. While the other planets in our solar system are always there, having multiple planets appear bright ...

A seven-planet alignment happens in late-February, but it could be tricky to see it While all seven planets could appear in some form in parts of the U.S., not all of them will be visible to the ...

The two alien worlds make extremely close approaches to each other every 97 days, on average; during those cosmic family reunions, the two planets are separated by less than five Earth-moon distances.

Astute skywatchers may have already seen the striking line of planets across the night sky in January. This week Mercury joins the queue. Now every other world in our solar system will be visible ...

Did you miss the June 3 planet parade, when six planets lined up in the sky?A second chance is coming in just a few days, on the morning of Aug. 24, when stargazers once again will have the ...

Stargazers will be treated to a rare alignment of seven planets on 28 February when Mercury joins six other planets that are already visible in the night sky. Here's why it matters to scientists.

On October 9, 2008, the State Space Agency of Ukraine sent a message towards Gliese 581c. Unlike the Voyager records, whose messages were chosen by a committee chaired by renowned physicist Carl Sagan ...

What to know about asteroid with small chance of hitting Earth in 2032 04:19. Seven planets are aligning in the night sky this week, creating a brief chance to see a "planetary parade." Worldwide ...

Alien life is out there. Can AI find it? It’s the ultimate game of find a needle in the haystack. One NASA scientist is betting on AI to help expedite the search through billions of planets.