While life on Mars (and Venus) has long been an obsession for those wondering if we're alone, there are other places in our ...

A comet born around a distant star is now tearing through our solar system at roughly 150,000 miles per hour, and astronomers ...

In July 2025, astronomers spotted something remarkable passing through our Solar System, an object that had not come from ...

PARIS, France — An interstellar comet that blazed past the Sun last year could be nearly three times older than our Solar System and is unlike anything ever before seen in our cosmic backyard, ...

As the United States prepares to celebrate its 250th anniversary, the history of the solar system tells its own story of ...

In the latest research, telescope observations of 3I/ATLAS examine its chemical structure and suggest that it took shape in a ...

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 ...

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 ...

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Estimating ages of specific events is one of the most difficult problems in astrophysics. While we have a precise (and probably accurate) age for the solar system, we do not have precise ages for each ...