Hubble cannot look at the Sun directly, so astronomers are planning to point the telescope at Earth's moon, using it as a mirror to capture reflected sunlight and isolate the small fraction of the ...

Using the Hubble Space Telescope an astronomer has detected water vapor in the atmosphere of Jupiter's moon Europa. Astronomers have long suspected that beneath the icy surface of Europa exists a ...

During a total lunar eclipse last year, astronomers trained the Hubble Space Telescope on our moon, which served as a giant lunar mirror. This marks the first time a space telescope captured a ...

There will be several chances to see the shadow of Saturn's largest moon, Titan, pass across the ringed planet's Earth-facing ...

Hubble's unique ability to see faint objects near bright ones, together with its sharp resolution, allowed astronomers to pluck out the moon from Makemake's glare. The discovery was announced ...

The moons that orbit Uranus are already known to have unusual characteristics: some are heavily cratered, others have ...

NASA announced today that the Hubble telescope had discovered a fourth moon around Pluto. The moon, tentatively called P4, joins Hyrdra, Nix and Charon. Pluto, if you remember, was demoted from ...

Hubble did not look at Earth directly. Instead, the astronomers used the Moon as a mirror to reflect sunlight, which had passed through Earth’s atmosphere, and then reflected back towards Hubble.

Meanwhile the moon is only about 380,000 km from us—and from Hubble. At that distance, Hubble’s resolution surprisingly limits it to resolving objects no smaller than about 90 meters across.

The Hubble Space Telescope captured these images of Jupiter. (From left) In November 2022, storms form a wave pattern. A January 2023 view shows the Great Red Spot, as the moon Ganymede transits ...

Then they combed through 150 archived Hubble images of Neptune looking for the moon. Using those Hubble images, they were ...

Trump's proposed 50% cut in NASA's science budget would turn the agency into an empty shell. Who's behind this?