That would make it thousands of times more massive than any moon orbiting a solar system plane  — so massive it could make ...

"We've often seen the 'baby pictures' of planets forming, but until now, the 'teenage years' have been a missing link." ...

At the beginning of the exoplanet age, the goals were fairly simple. The first was to find as many of them as possible to ...

Scientists have gotten a never-before-seen look at an area around a large exoplanet 625 light-years away where moons like the one orbiting Earth could potentially form. "Moons likely outnumber planets ...

After decades of searching, astronomers may have finally stumbled upon the first moon known to exist beyond our solar system—and it's an absolute giant. Reading time 3 minutes In September, NASA ...

The hunt for worlds beyond our solar system has shifted from counting planets to confronting extremes that strain basic physics. In 2025, astronomers did not just add new dots to the map, they ...

Exoplanets are planets outside Earth's solar system. In 1995, a gas giant named 51 Pegasi b, which orbits a star similar to Earth's sun, etched its name in history as the first exoplanet ever ...

European astronomers report the discovery of a second alien world in the TOI-1422 planetary system located some 500 light years away. The newfound exoplanet, which received designation TOI-1422 c, is ...