The Solar System might not be as quiet and orderly as we think. Imagine one day looking up and seeing something strange in the sky, a small speck that grows larger and larger. Soon, it becomes clear: ...

Astronomers are researching an Earth-like exoplanet that could contain water, according to NASA. The exoplanet, named ...

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, waiting to ...

Did you see the bright star next to the moon? That was Venus, and part of a conjunction between the moon, Venus and the star ...

Two bright spots in your dark, pre-sunrise skies could very well be Venus and Jupiter, which are appearing very close together despite being millions of miles apart. Jupiter and Venus will appear at ...

That raises the possibility that the TRAPPIST-1e exoplanet could also have liquid water and therefore support life.

A visible line of planets has for weeks been the talk of astronomers and hobbyist stargazers who have sought to catch a sight of our solar system's worlds. Online chatter and a frenzy of media ...

Arizona skywatchers, grab your binoculars and look to the western horizon because this week’s parade of planets is serving up a celestial spectacle. Seven planets — Mercury, Mars, Jupiter, Uranus, ...

This article was originally featured on The Conversation. Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky A cloud of ...