Admire 8 beautiful Moon images from NASA Hubble, each capturing rare details of our closest cosmic neighbor., Technology & ...

A year after discovering Pluto's fourth moon, "P4," astronomers have learned of a fifth thanks to new images from the Hubble Space Telescope. Inventively named "P5," the moon is believed to be between ...

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 ...

In 1925, Edwin Hubble's observation of Cepheid variables in the Andromeda galaxy revolutionized astronomy, proving the ...

Astronomers using the Hubble Space Telescope have discovered a fourth moon orbiting Pluto. Pluto - for the record - is still classified as a dwarf planet. Astronomer Larry Wasserman of Lowell ...