The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

Our sun and its planets arose when the universe was about 9 billion years old, and the oldest known planet developed 1 billion years into the life of the universe. Receive a weekly dose of ...

A super-Earth planet that dips in and out of its star's habitable zone has been discovered just 19.7 light-years away.

The article characterizes planets in the context of an Indian family, assigning each a distinctive role. The Sun is portrayed ...

Finding a world like Earth elsewhere in the universe might mean looking for the right kind of solar system. A new discovery ...

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

The planet parade occurs when the planets' positions in their elliptical orbit around the sun line make them seem ... to witness the wonders of our universe. In conclusion, the Planet Parade ...

Thirty years after the discovery of the first exoplanet, we detected more than 7000 of them in our Galaxy. But there are ...

Six planets grace the sky this month in what's called a planetary parade — Venus, Mars, Jupiter and Saturn are visible to the ...

Is the universe flat and infinite, or something more complex? We can’t say for sure, but a new search strategy is mapping out ...

Astronomers aimed the Very Large Telescope in Chile at a nearby exoplanet and discovered jet stream winds blowing nearly 80 ...