On July 1, 2025, a telescope in Chile caught a faint smudge drifting across the sky. Within weeks, astronomers confirmed it ...

A rocky planet nearly 50 light-years away appears to be airless, dark, and covered in volcanic or weathered rock, according ...

The presence of deuterium, an isotope of hydrogen, in 3I/ATLAS suggests the interstellar comet formed in a much colder place ...

Measurements of this interstellar comet’s molecular makeup show an excess of heavy water molecules that is dramatically ...

Rather than slowly condensing over millions of years, the first building blocks of Earth and other planets may have formed rapidly in a chaotic disk at the dawn of the solar system ...

By Will Dunham WASHINGTON, May 4 (Reuters) - In the far reaches of our solar system - beyond the outermost planet Neptune - ...

A multi-institutional team of astrophysicists headquartered at Boston University, led by BU astrophysicist Merav Opher, has made a breakthrough discovery in our understanding of the cosmic forces that ...

While its star projector leaves a lot to be desired, the Science Can Solar System Planetary Projector is a fantastic educational tool for kids, with its solar system model, complete with talking ...

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 ...

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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 ...