When I was in grade school I was fascinated by the world’s largest telescope: the 200-inch-diameter Hale Reflector on Palomar Mountain near San Diego.

As the Hubble Space Telescope approaches 35 years since its launch, marking over three decades of incredible images of the universe and science, NASA and its partner, the European Space Agency, are ...

Along with researching gravitational waves, Holz heads the Science and Security Board at the Bulletin of Atomic Scientists ...

The James Webb Space Telescope has pointed its infrared optics at the 'Crystal Ball Nebula' NGC 1514, a planetary nebula ...

NASA has unveiled a newly reprocessed image from theHubble Space Telescope that offers a stunning look at a ...

The Hubble Space Telescope has captured imagery of spiral galaxy UGC 2890. The "galaxy lies around 30 million light-years ...

The initial report was based on observations from the powerful James Webb Space Telescope, a collaboration of NASA and its European and Canadian counterparts. But the results created a lot of hubbub ...

A slowly spinning universe could resolve a puzzle in physics known as the Hubble tension, a new model suggests.

The photo of a 9.5-light-year-long cloud within the Eagle Nebula celebrates the space telescope’s upcoming 35th birthday.

K2-18b, an exoplanet 120 light-years away, may be the best hope to confirm that life exists beyond Earth. Here's what to know ...

Compelling evidence of a long-sought black hole at the center of the galaxy M83 has been unveiled using the James Webb Space Telescope.

A blob of gas seen outside the Milky Way could be a type of starless, dark matter–dominated galaxy. Some scientists are skeptical.