Becca Caroline explains that scientists have discovered that the planet, TRAPPIST-1e, exists in the habitable zone around its ...

A scorching, airless world just 48 light-years away is offering scientists a rare glimpse into the geology of distant planets ...

Exoplanet science and the search for life beyond Earth continue to advance at break-neck speeds, with the number of confirmed exoplanets by NASA rapidly approaching 6,300, with 223 of those exoplanets ...

Fresh takes on Apollo’s famous “Earthrise” and “Blue Marble” images showed off our planet’s beauty just weeks before Earth ...

There is a reason the most recognizable planet orbiting two stars is the fictional desert world of Tatooine from Star Wars.

New research suggests that many planets previously considered promising for life may, in fact, be far less hospitable. A ...

Astronauts and robotic spacecraft have captured breathtaking photos of Earth from space for decades. See the best images.

NORFOLK, Va. — Each planet in our solar system takes a different amount of time to complete one orbit around the sun. For example, Mercury, being closest to the sun, takes just 88 Earth days to ...

Thanks to the sheer mass of Jupiter and fellow gas giant Saturn, the Solar System barycenter is rarely in the center of the ...

A possible cousin of Pluto seems to be circling the far reaches of the solar system. The dwarf planet candidate 2017 OF201 travels in a superwide orbit, with the sun relatively near one end of its ...

While Galileo's observations killed off the old model, we would need to wait centuries for conclusive evidence that Earth ...