Although thousands of exoplanets are known, no moon has yet been found outside the solar system. This may now have changed.

This NASA/ESA Hubble Space Telescope image features the striking spiral galaxy Messier 90 (M90, also NGC 4569), located in ...

Scientists suspect that beneath Europa’s icy crust is a giant ocean of liquid water. They launched a spacecraft to ...

Due to launch in the early 2030s, NASA's DAVINCI mission will investigate whether Venus—a sweltering world wrapped in an ...

MILAN — After collecting the first-ever samples from the far side of the moon, China is now setting its sights on even more distant destinations — Mars, asteroids and Jupiter, positioning itself as a ...

NASA’s claim that its third flight, Artemis III, could see an American woman set foot somewhere near the Moon’s south pole, ...

Astronomers report the detection of a second exoplanet orbiting a G-type star known as TIC 393818343, located some 300 light ...

The Great Red Spot is a gargantuan, high-pressure vortex called an anticyclonic storm that has been raging in Jupiter's ...

A steam-shrouded planet unlike any we’ve seen before has been detected nearly 100 light years away. The planet, known as GJ ...

Researchers have developed a new method using the Allen Telescope Array to search for interplanetary radio communication in ...

The final 3D atlas of the sky will help scientists study dark matter and dark energy, which make up 96 percent of the ...

Even Mars rovers like to chase solar eclipses. On Sept. 30, NASA's Perseverance rover turned its Left Mastcam-Z camera toward the sky and photographed a solar eclipse from Mars, capturing the planet's ...