"What If is an epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a ...

Galileo Galilei's telescopic discovery of Jupiter's four moons in 1610 revolutionized astronomy and supported heliocentric ...

NASA captures volcanic world of Jupiter's moon IoThis new look at the gas giant is from the Hubble Space Telescope, a low-orbit observatory that was launched in 1990 and scans the skies to this day." ...

The data used to create the image is from a Hubble Space Telescope project to capture and map Jupiter's superstorm system.

The larger moons of Pluto and Earth likely formed through a collisional process with Charon and our moon, respectively, ...