A big step in the exploration of other planets in our solar system is within reach as NASA makes a big announcement.

Add Yahoo as a preferred source to see more of our stories on Google. An illustration showing Planet Nine, a hypothetical, undiscovered planet in our solar system. New research now suggests the ...

With all of the worrying things happening here, on earth, one way to take your mind off them is to look at the beauty of the cosmos. Luckily, NASA is still out there exploring outer space and ...

Relative sizes of the newly discovered habitable-zone planets and Earth. Left to right: Kepler-69c, Kepler-62e, Kepler-62f and Earth (except for Earth, these are artists' renditions). Image credit: ...

NASA scientists have recently made a groundbreaking discovery about potential alien life within our own solar system, a finding that could have significant implications for our understanding of ...

Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar system.

Far beyond Neptune, in the frozen depths of the Kuiper Belt, many ancient objects oddly resemble giant snowmen made of ice and rock. For years, scientists wondered how these delicate two-lobed shapes ...

Astronomers have found a planet-forming disk that looks like a solar system on steroids. New images from NASA's Hubble Space Telescope have revealed an enormous, oddly shaped disk of gas and dust ...

LONDON — The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper's authors have ...