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.

Clear skies will also be necessary to see all the planets. The planets in the solar system orbit the sun, just as Earth does. Every planet orbits at a different speed and distance. During these ...

Why does our solar system lack the most common types of planets in the galaxy—those larger than Earth but smaller than Neptune? And perhaps most important, how do these findings affect our ...

“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 ...

A stunning planet parade is now visible in the night sky. A planet parade is when several of our solar system's planets are visible in the night sky at the same time. All seven planets will be ...

Once they are all in place, seven of the eight planets in our solar system will grace our sky. For much of the week, six of the planets may be visible, according to NASA. On Friday, however ...

The parade of planets, when all seven of Earth's solar system neighbors can be seen in the night sky, starts Friday and continues through next week. You are able to gift 5 more articles this month.

Once its rings vanish from sight in March 2025, Saturn will look like a pale yellow sphere through most telescopes.

Beginning in late February, seven planets will align in the night sky. But Uranus and Neptune may require a telescope to see. Mars SKY AT Viewed from above the solar system, the seven planets will ...