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, NASA's ...

Research Fellow Dr. Babak Bakhit has encountered one of his most challenging projects to date—contributing to the European ...

The brutal conditions also make Io intriguing to NASA scientists intent on learning more about the innermost and ...

The eruption released energy six times greater than all Earth's power plants combined, exceeding 80,000 trillion watts.

Skywatchers on Thursday evening, Feb. 6, will notice an eye-catching pairing-off between two of the brightest objects in the ...

Loki Patera is 202 kilometres (126 mi) in diameter, covers 20,000 sq km (7,700 sq mi), and was the largest volcanic feature ...

You shouldn't set your expectations too high, but it will give you enough of a taste to see whether you want to invest in ...

Explore Jupiter’s majestic Great Red Spot, help manage burn piles and enjoy a volunteer workday at Pepperwood Preserve in ...

The brutal conditions also make Io intriguing to NASA scientists intent on learning more about the innermost and third-largest of Jupiter’s four Galilean moons. For nine years, a spacecraft ...