The planet Neptune, as seen by NASA’s Voyager 2 probe during a flyby in August of 1989. In astronomy, 180 years is a very long time—maybe not for the goings-on in the universe but certainly for our ...

Astronomers used a telescope in Hawaii to find a new object on the outer edges of our solar system, helping to fuel evidence of a long-standing theory about Planet Nine, or Planet X. For years, ...

PRINCETON, N.J. (CNN/CNN Newsource/WKRC) — A new planet was possibly discovered beyond the planet Neptune. Researchers from the Institute for Advanced Study's School of Natural Sciences have announced ...

Astronomers have discovered two exoplanets around TOI-1453, a star about 250 light years away. These two exoplanets, a super-Earth and a sub-Neptune, are common in the galaxy, yet are absent from our ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. The solar system suddenly has a new member. A new object ...

It might seem unfathomable to us living today, but 179 years ago on this very date, our galaxy, The Milky Way, actually grew by one planet. Okay, okay, we know, that that is not what actually happened ...

In astronomy, 180 years is a very long time—maybe not for the goings-on in the universe but certainly for our understanding of it. To be fair, we still don’t. But our understanding of our sun’s family ...