NASA’s Neil Gehrels Swift Observatory temporarily halts science operations to reduce orbital drag, preparing for a commercial reboost mission with Katalyst Space Technologies.

WASHINGTON (Reuters) -NASA has tapped startup Katalyst to save a $500 million orbiting observatory from falling into Earth's atmosphere by launching a spacecraft meant to push it farther in space, a ...

On February 11, 2010, NASA launched a spacecraft to study the inner workings of the sun. [‘On This Day in Space’ Video Series ...

The John J. McCarthy Observatory - run by volunteers on the grounds of New Milford High School - has been watching the night sky for 25 years.

Planned launch of 500,000 satellites could spoil about one in three Hubble images, even when the telescope stays above Earth's weather.

Astronomy and commercial space are often portrayed as being on a collision course, yet their futures are deeply intertwined. As satellite constellations expand, astronomers raise concerns about trails ...

Our planet is surrounded by a halo of ultraviolet light invisible to the naked eye, a celestial phenomenon that scientists have been trying to understand for over half a century. This enigmatic glow, ...

Satellites reflect sunlight, Earthshine, infrared and radio waves. A new NASA-led study shows that the increasing number of satellites in low-Earth orbit could ruin up to 96% of images from some ...

Light is the fastest phenomenon in the universe, clocking in at just under 300,000 kilometers per second. The telescopes that observe that light, from radio waves to gamma rays, are built at rather ...

Behold the golden-orange horizon over Kitt Peak National Observatory, a fiery twilight moment where day bows out and the stars prepare their grand entrance. Captured by NOIRLab, this sunset reveals ...

In 1974, the Arecibo Observatory made history by beaming the most powerful radio message into deep space ever made. The famous Arecibo Message was designed by the AO 74's staff, led by Frank Drake, ...