In a small blow to the search for extraterrestrial life, a nearby star shot out a strong enough coronal mass ejection to ...

In a remarkable cosmic event observed on November 2, 2025, scientists had the rare opportunity to witness a dead star ...

There are no confirmed exomoons, moons orbiting distant exoplanets in other solar systems. There are a few candidates, but ...

Is a sun a star or a planet? While science now agrees the sun is a star, new telescopes may soon challenge how we define ...

Scientists have detected methane gas glowing faintly above Makemake, an icy dwarf planet smaller and farther than Pluto in space. Until now, Pluto was the only object that far out in the solar system ...

Researchers at McGill University and collaborating institutions have mapped the atmospheric features of a planetary-mass ...

Nearly a century after Pluto’s discovery, astronomers are still hunting for mysterious planets beyond Neptune - including a ...

The dwarf planet Ceres, tucked away in the asteroid belt between Mars and Jupiter, has long been considered a quiet, frozen remnant of the early solar system. With its airless surface, icy shell, and ...

Our solar system is much like a trail of microcosmic breadcrumbs: Follow the molecular bits as far back as they go, and you'll learn a thing or two about where many of our planets and other celestial ...