Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

A European-Japanese spacecraft has beamed back some of the best close-up photos yet of Mercury's north pole ... The spacecraft holds two orbiters, one for Europe and the other for Japan, that will ...

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

ISTOCK / GETTY IMAGES PLUS The planets in our solar system ... This alignment causes the apparent paths of the other planets to trace a consistent arc across the sky. "This is, incidentally ...

There are two other planets in the night sky ... Earlier this month, the BepiColumbo spacecraft took close-up images of its craters. If a planet is visible from the night side of Earth, it ...

New images of the planet Mercury taken by a robotic spacecraft have just been released — and they show the scorched world in fascinating up-close detail. SEE ALSO: Is Mercury in retrograde?

A European-Japanese spacecraft has beamed back some of the best close-up photos yet of ... one for Europe and the other for Japan, that will circle the planet's poles. The spacecraft is named ...