Callisto, the third largest moon in the entire solar system, orbits Jupiter from about 1.2 million miles away. The rocky world, discovered in 1610 by Italian Renaissance man Galileo Galilei, has ...

The image shows just a small fraction of the Veil Nebula; if you could see the entire nebula without the aid of a telescope, it would be as wide as six full Moons placed side-by-side,” Hubble ...

Using the James Webb Space Telescope (JWST), astronomers have peered into the atmosphere of a cosmic body that could be a ...

Quadruple Saturn Moon: On February 24, 2009, the Hubble Space Telescope took a photo of four moons of Saturn passing in front ...

It is showing only a tiny fraction of the Veil Nebula, which is roughly as wide as six of Earth’s moons placed side by side. Hubble has previously snapped images of this nebula in 1994 ...

NASA’s Juno spacecraft identifies over 40 enormous lava lakes on Io, shedding light on the extreme volcanism sculpting Jupiter’s moon.

Research Fellow Dr. Babak Bakhit has encountered one of his most challenging projects to date—contributing to the European Space Agency's (ESA) JUpiter ICy moons Explorer (JUICE) mission.

NASA has released new cosmic images captured by the Hubble and James Webb telescopes. The images feature stellar phenomena ...

NASA's Europa Clipper is about to use Mars' gravitational pull to slingshot itself towards Jupiter's fourth-largest moon ...

More pocked with craters than any other object in our solar system, Jupiter's outermost and second-biggest Galilean moon, Callisto, appears geologically unremarkable. In the 1990s, however ...

If you find Jupiter, you’ll likely see four small dots to the side of the gas giant: they are the Galilean moons, four of the 95 natural satellites around the Solar System’s largest planet.