The trio is a rarity—and when all of its unusual traits are considered together, it is unique.

An international team including astronomers from the Center for Astrophysics | Harvard & Smithsonian (CfA) has announced the ...

Mike Brown is convinced that beyond Neptune, at the far reaches of our solar system, there's an unseen giant planet. "This is the 5th largest planet in our solar system, lurking out there ...

Built between 1774 and 1781, this accurately working model of our solar system provides an up-to-date and realistic image of the positions of the Sun, the Moon, the Earth and the five other planets ...

Scientists have hypothesized since the 1960s that the sun is a source of ingredients that form water on the moon. When a ...

With a lot of talk about space recently, have you ever wondered which are the hottest planets in the solar system? You'd think the closer you are to the sun, the hotter they must be. Now that's ...

In a stunning new finding, astronomers have uncovered the strongest evidence yet of life existing beyond our solar system. Using the James Webb Space Telescope, researchers from the University of ...

The simulation that produced the most realistic results involves ... According to the ruling theory of how our solar system ...

Scientists have hypothesized since the 1960s that the Sun is a source of ingredients that form water on the Moon. When a stream of charged particles known as the solar wind smashes into the lunar ...