Astronomers have confirmed the existence of four planets orbiting a star less than 6 light-years away with help from some of ...

Last year, astronomers announced that a planet orbits Barnard’s star. Now, researchers have confirmed the existence of three more.

As NASA explained, such claims should be taken with a degree of skepticism. While all seven planets could appear in some form in parts of the U.S., not all of them will be visible to the naked eye.

For months now, we have been teased by the planets in the night sky. Uranus and Neptune need a telescope to be seen, but Mars, Saturn, Jupiter, and Venus can be seen with the naked eye. All of these ...

Barnard's Star is a small, dim star of the type that astronomers call red dwarfs. Consequently, even though it is one of the ...

That path is called the ecliptic, and it exists because all planets in our solar system orbit around the sun on roughly the same plane. Astronomers, on the other hand, look for more specific ...

According to an alternative model of how intelligent life emerges on planets like Earth, the existence of aliens—and human ...

A rare celestial event on Feb. 28 will offer skywatchers the chance to witness a "planet parade" of all seven planets in our solar system outside of Earth. It's the last time this type of ...

Most are expected to be visible to the naked eye, though not all seven. The alignment is known as a planet parade — a planetary lineup in space from Earth’s perspective. The alignment takes ...

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.

For months now, we have been teased by the planets in the night sky. Uranus and Neptune need a telescope to be seen, but Mars, Saturn, Jupiter, and Venus can be seen with the naked eye.