This week, scientists using the Hubble Space Telescope found that Jupiter’s largest moon, Ganymede, has as vast, salty ocean under… Read More ...

NASA continues to capture amazing pictures from space. From detailed views of Mars to breathtaking perspectives of the Moon’s ...

WASHINGTON -- Scientists said they have found evidence of water in the atmosphere of Jupiter's icy moon "Europa." NASA said its Hubble space telescope observed the presence of persistent water vapor ...

One of the most stubborn issues in cosmology today concerns the universe's rate of expansion. Scientists know it's expanding, but defining the rate of that expansion is challenging. The rate of ...

Two ways of measuring how fast the universe is expanding disagree, a puzzle known as the Hubble tension. Tiny magnetic fields from the Big Bang may offer a solution.