A rare discovery beyond Neptune is forcing scientists to rethink early solar system dynamics and the forces that shaped ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...

Astronomers have revealed new research showing that millions of new solar system objects are likely to be detected by a brand-new facility, which is expected to come online later this year.

A tiny meteorite is rewriting what scientists thought they knew about the origins of our solar system. New evidence found in shavings from a meteorite known as Northwest Africa 12264 — a 50-gram (1.8 ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. The solar system suddenly has a new member. A new object ...

Homer Newell and the Origins of Planetary Science in the United States -- The Survival Crisis of the US Solar System Exploration Program in the 1980s -- Faster, Better, Cheaper: A Sociotechnical ...

Peering through a cosmic keyhole at distant baby star, astronomers may have opened a new window on the deep past of our own solar system. Weighing in at 0.6 solar mass, HOPS-315 should someday grow to ...

“It’s older than the Earth.” In a mere five words, planetary geologist Scott Harris summed up the staggering nature of a humble, small rock that tore through a Georgia home this summer. The 23-gram ...

Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system. These embryos, somewhere between small planetesimals and fully formed planets, ...