Astronomers using the Hubble Space Telescope have discovered a fourth moon orbiting the icy dwarf planet Pluto. The tiny new satellite, temporarily designated P4, was uncovered in a Hubble survey ...

In 1974, the project’s Science Working Group recommended that the telescope be required to resolve details at least one-tenth ...

Peering to the outskirts of our solar system, NASA’s Hubble Space Telescope has spotted a small, dark moon orbiting Makemake, the second brightest icy dwarf planet after Pluto in the Kuiper Belt. The ...

Scientists are planning to use NASA's Hubble Space Telescope to observe next month's historic transit of Venus across the sun's face. But there's a twist. Researchers can't point Hubble anywhere near ...

This mottled landscape showing the impact crater Tycho is among the most violent-looking places on our Moon. Astronomers didn’t aim NASA’s Hubble Space Telescope to study Tycho, however. The image was ...

On January 20-21, 2019, planet Earth came between the Sun and the Moon, draping the rocky body with its shadow in a total lunar eclipse. The Moon may have appeared dim to us here on Earth, but it ...

This story was updated at 11:05 a.m. EDT. A tiny new moon has been discovered around Pluto, the fourth and smallest one yet found orbiting the dwarf planet, photos from the Hubble Space Telescope ...

Astronomers have discovered evidence of water vapor in the atmosphere of Jupiter’s moon Ganymede, according to a study released in the journal Nature Astronomy. Previous research provides evidence ...

Scientists using the Hubble Space Telescope have used the ageing space-based observatory to peer at the Earth during a total lunar eclipse. It’s the first time a total lunar eclipse—often referred to ...

Astronomers using the Hubble Space Telescope discovered a fourth moon orbiting the icy dwarf planet Pluto. The tiny, new satellite – temporarily designated P4 -- was uncovered in a Hubble survey ...

Using data from NASA’s Hubble Space Telescope, scientists say they’ve found the first-ever evidence of water vapor in the atmosphere of Jupiter’s moon Ganymede. It’s an exciting discovery that ...