The team still can't confidently rule out the existence of Europa's water vapor, especially as similar plumes have been more ...

Nereid may be an original Neptunian moon that was pushed outward when Triton entered the system billions of years ago.

What can the vapor plumes on Jupiter’s moon Europa teach scientists about the small moon’s atmosphere? This is what a recent ...

Neptune’s far-flung moon Nereid may be the last of the planet’s original companions that managed to survive a cosmic crash, ...

A fresh analysis of 14 years of Hubble Space Telescope data has cast doubt on previous claims that Jupiter’s icy moon Europa ...

Reanalysis of 14 years of Hubble data has weakened evidence of Europa’s hypothesized water plumes.

Long before the full moon rises, shifting sunlight transforms the lunar surface into one of the sky's best telescope targets.

Neptune has a complicated life story, and its moon Nereid might be the only one left standing from the planet’s ...

NASA's new Nancy Grace Roman Space Telescope is due to be launched into space in a few months on a mission to take far better ...

A striking new image of the Whirlpool Galaxy is helping astronomers solve one of the biggest mysteries in star formation.

The new image shows the galaxy NGC 1266, a transitional object with a clutch of young stars that likely collided with a ...

After 40+ years of development, design, construction, and delays, the Hubble Space Telescope launched on April 24, 1990, on ...