Explore the scale of our solar system, from Earth and the Moon to the giant planets, Pluto, and the distant Oort Cloud. Discover how planetary sizes and distances compare, how long light takes to ...

Astronomers using the Vera C. Rubin Telescope discovered a possible new dwarf planet that, if confirmed, could join 5 others ...

Astronomers have identified a massive icy object beyond Pluto that could become one of the largest known dwarf planets in our ...

Lying beyond Pluto, 2026 ED138 could be as large as 1,500 kilometers in diameter. Astronomers are still working to confirm ...

Learn about 2026 ED138, a new dwarf planet candidate that may be one of the largest and brightest objects discovered beyond ...

Scientists may have discovered a new dwarf planet hiding on the edge of our Solar System, and it could be one of the largest ...

A large object in the Kuiper Belt — a distant region of icy and rocky bodies past Neptune — appears to be a new candidate ...

ED138, a newly discovered dwarf planet candidate, could join a group of only five other recognized objects that includes our ...

Scientists may add a new dwarf planet to the official roster of our solar system. The distant, icy body, provisionally dubbed ...

JWST measurements reveal unusual chemical signatures in 3I/ATLAS, suggesting the interstellar comet formed in an extremely ...

Astronomers using the Vera C. Rubin Observatory in Chile have identified a massive icy object located beyond Pluto, which could potentially claim ...

On Oct. 11, 2026, NASA's Perseverance rover reached 28.10 miles on Mars, passing Opportunity's off-world record, mostly by ...