Astronomers are investigating a potential hidden planet, dubbed Planet Y, far beyond Neptune. Its gravitational pull is ...

MIT scientists have discovered ancient rock samples from Greenland, Canada, and Hawaii exhibiting a rare potassium-40 deficit ...

Since its arrival this summer, scientists have been racing to understand as much as possible about 3I/ATLAS, the third ...

Astronomers are investigating a strange class of exoplanets known as eccentric warm Jupiters — massive gas giants that orbit their stars in unexpected, elongated paths. Unlike their close-orbiting ...

The rings of Saturn are among the wonders of our solar system, with a diameter of roughly 175,000 miles (280,000 kilometers) ...

By not spending monies appropriated for Biden-era clean energy bills, the president is helping China win the global energy race.

Analyses of its emissions using NASA’s Neil Gehrels Swift Observatory indicate that the interstellar comet probably has a ...

For millions of years, a tiny icy fragment wandered through space—like a sealed bottle drifting across a cosmic ocean. This ...

The Moon's largest, most ancient crater, the South Pole-Aitken (SPA) basin, could rewrite the textbooks on how our Moon was ...

Data from the James Webb Space Telescope and other observatories suggests a supervolcanic exomoon may lurk around the giant ...

The eyes of every astronomer widened this year when an interstellar traveler was discovered in our solar system. Despite some ...