The Solar System may appear calm and well organized, but it is actually the result of billions of years of delicate cosmic ...

Mercury is the smallest planet in our solar system. Mercury is a little more than one-third the width of Earth and has an equatorial diameter of about 3,032 miles (4,880 kilometres).

WASHINGTON, June 25 (Reuters) - In addition to providing a trove of information about the early universe, the James Webb ...

The star HIP 67522 with a flare erupting toward an orbiting planet, HIP 67522 b, is depicted in this illustration released by ...

Scientists are tracking a large gas planet experiencing quite a quandary as it orbits extremely close to a young star - a ...

Astronomers using NASA's James Webb Space Telescope spotted TWA 7b, a Saturn-sized exoplanet around a nearby star ...

A giant gas planet comparable in size to Saturn exists around a small red dwarf star. The discovery is beyond the scope of ...

A newly discovered exoplanet orbits a star smaller than our Sun, located roughly 110 light-years from Earth in the constellation Antlia.

Several planets stand still in the sky, Titan’s shadow transits Saturn, and Venus gives Taurus a second eye in the sky this ...

The James Webb Space Telescope has directly imaged its first exoplanet — a young, Saturn-sized gas giant orbiting a star 110 light-years away in the constellation Antlia, researchers said.

No telescope has basked in the night sky quite like the enormous new Vera Rubin Observatory. Here's what it could reveal ...