Astronomers have reportedly discovered a skyscraper-sized asteroid moving through our solar system at a near record-breaking pace. The asteroid, named 2025 SC79, circles the sun once every 128 days, ...

Scientists have discovered extraordinary "interstellar tunnels" that create direct pathways from our solar system to distant stellar regions, fundamentally changing our understanding of the space ...

Here’s how it works. Planetary scientists are split, oscillating between two main theories that explain the order in which our solar system's planets came to be. (Image credit: MARK GARLICK/SCIENCE ...

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 dubbed ...

More than 2 billion kilometers farther from the sun than Pluto, a frigid world named Makemake sports the most distant gas ever seen in our solar system, new observations reveal. “By surprise, we found ...

Due to the lapse in federal government funding, NASA is not updating this website. C.2 Solar System Science solicits proposals for research, data analysis, data preservation, and tools that support ...

Astronomers have uncovered a massive new trans-Neptunian object, 2017 OF201, lurking at the edge of our solar system. With an orbit stretching 25,000 years and a size that may qualify it as a dwarf ...

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The discovery of the Kuiper Belt fundamentally reshaped our understanding of the solar system's architecture and population, revealing a far larger and more complex system than previously imagined.

Astronomers have spotted 3I/ATLAS, just the third interstellar object ever seen in our solar system. Bigger, faster, and possibly far older than ‘Oumuamua or Borisov, this icy traveler could help ...