For decades, many scientists believed that most of the water in our planet came from space, transported by meteorites and comets during the first moments of ...

Hundreds of people who love the little planet that was dissed, gather every year in the Arizona town where Pluto was discovered. They celebrate scientific discovery, history and our solar system’s ...

An international team of astronomers has discovered a distant planetary system that challenges long-standing theories of how planets form. Across our galaxy, astronomers routinely observe a ...

Astronomers studying a dim red dwarf star called LHS 1903 have found a four-planet system with an architecture that defies ...

Pluto has not completed a single orbit since its 1930 discovery. With a 248-year journey around the Sun, the dwarf planet will finish its first full circuit in 2178.

Using NASA's Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers has discovered a new exoplanet orbiting a distant star known as TIC-65910228. The newfound alien world ...

Samples taken from an ancient Mars rock may indicate that ancient life once existed on the Red Planet, according to a study ...

Pluto will complete its first orbit since 1930 in 2178, a historic 248-year space journey that spans generations of humans.

An international research team announces the discovery of a new exoplanet orbiting a binary star system. Named HD 143811 b, ...

Why does Star Trek look so different in 2026 from the way it did in 1966? What's David Ellison's company changed about it?

Why it matters: While not evidence of life, these discoveries show that ancient Mars had complex organic chemistry, ...

A vast underground tunnel known as a lava tube, formed from ancient volcanic activity, has been discovered Venus.