Astronomers have uncovered a massive new trans-Neptunian object, 2017 OF201, lurking at the edge of our solar system. With an ...

NASA’s Hubble Space Telescope has snapped images of a recently discovered interstellar visitor hurtling through our solar ...

The U.S. planetary science community is sounding the alarm about plans to discard a nuclear technology that has powered dozens of NASA missions over the past 50 years ...

The immensity of space makes it impossible for humans to discover every hiding place the universe holds. Its infinitude makes ...

Astronomers continue to track the third-ever discovered interstellar object, comet 3I/ATLAS, as it moves through our cosmic ...

Astronomers simply can't shake the feeling that there's something really off about interstellar object 3I/ATLAS. The mysterious entity, which was first spotted hurtling towards the Sun in early July, ...

Astronomer and Pluto mission leader S. Alan Stern explores how the field has transformed during his decades-long career.

Solar Orbiter flew closer to the Sun than ever before. This proximity let it capture electrons in pristine conditions.

The award-winning PBS science series, NOVA, a production of GBH, will premiere an epic new five-part series, SOLAR SYSTEM, Wednesdays, beginning October 2 at 9pm ET/8C on PBS.

OSIRIS-REx samples from Bennu contain stardust older than the Sun, preserving clues to the solar system’s earliest history.

The universe is full of surprises, but two discoveries in the outer solar system are dominating astronomy news this week. First, astronomers reported yesterday that they have found a distant, tiny ...

A study published in April describes the most accurate measurement yet made of the center of the Solar System.