The Latest Breaking News from Solar System

In 2006, the International Astronomical Union (IAU) famously demoted Pluto to a dwarf planet. Things have been a bit of a mess since then — so is it time to redefine the planet?

On October 24, look low in the eastern sky just before sunrise to check out a comet from the Oort Cloud.

Astronomers using the James Webb Space Telescope had to race against time to image a young exoplanet before it disappeared for a decade.

Is there anywhere else in our solar system that could support life? If our solar system turns out to be home to two habitable worlds (Europa and Earth), "think of what that means when you extend that result to the billions and billions of other solar systems in this galaxy,"…

NASA plans to send humans on a scientific round trip to Mars potentially as early as 2035.

The vital ingredients for life on Earth may have been delivered by meteorites from larger bodies called "planetesimals" in the early solar system. The discovery could assist in the search for alien life.

The human mind may find it difficult to conceptualize: a cosmic cloud so colossal it surrounds the Sun and eight planets as it extends trillions of miles into deep space.

NASA's Hubble Space Telescope and New Horizons Pluto probe have teamed up to image the ice giant Uranus, which will help inform future direct imaging of exoplanets.

Here's the winding road NASA's Europa Clipper must take through the Solar System to reach a special Jupiter moon.