The world's largest solar telescope has reached an important milestone. The data published now were obtained during the technical commissioning of the instrument.

A study suggesting the exoplanet K2-18b may contain potential signs of alien life has been met with skepticism from the scientific community. Here’s the truth about what the James Webb Space Telescope ...

Solar flares accelerate energetic electrons that escape into interplanetary space, guided by the Parker spiral magnetic field ...

From spellbinding images to groundbreaking scientific discoveries, we look back on some of Hubble's most exciting milestones.

Thirty-five years ago, the Hubble Space Telescope was launched into orbit. It's been sending back galactic data and images ...