The final milestone in construction was reached on November 25, as technicians carefully joined the giant telescope's inner ...

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

Researchers have discovered a large, orderly spiral galaxy that formed soon after the Big Bang, when space was only about 1.5 ...

Using the Webb telescope’s powerful Near Infrared Imager and Slitless Spectrograph (NIRISS) instrument, the team detected a ...

The final integration of the telescope's major observatory components took place on Nov. 25 inside NASA's Goddard Space ...

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

According to NASA, the NIRCam on the JWST has near infrared imagery that provided high-resolution imagery for the ...

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

The Atacama Cosmology Telescope in Chile not only confirmed one of the greatest mysteries in the universe—it also ruled out ...

Astronomers using the Subaru Telescope in Hawaiʻi have discovered a massive planet and a brown dwarf orbiting distant stars.

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

This infrared view offers the clearest look yet at how dwarf galaxies merge, evolve, trade gas and ignite waves of new stars.