Once completed, this telescope will help usher in a new era of astronomy.

The supernova exploded over 13 billion years ago in a galaxy far, far away.

A faint, ancient flash of light detected by the James Webb Space Telescope (JWST) has broken the record for the most distant ...

Day 10 of the 2025 Space Telescope Advent Calendar ...

If you feel a thrill every time we discover something new about the cosmos, then November 25th may have been a noteworthy day ...

NASA's Nancy Grace Roman Space Telescope is now fully assembled and ready to begin launch preparations this summer.

Astronomers have long been concerned about reflections from satellites showing up in images taken by telescopes and other ...

Satellites reflect sunlight, Earthshine, infrared and radio waves.

New 3I/ATLAS images from NASA and the ESA suggest the interstellar comet is active as it approaches Earth in December.

Fleets of satellites interfere with snapshots taken by Earth-bound observatories. But a new study suggests these orbiters ...

Proliferating satellites are beginning to harm the science work of the beloved Hubble Space Telescope and other observatories ...

Light from the half a million satellites that humanity is planning to launch into Earth's orbit in the coming years could ...