The school-bus-sized observatory launched on April 24, 1990 and overcame early setbacks to become one of the most ...

The Hubble Space Telescope is celebrating its 35th anniversary in space today, but even as a senior citizen in the spacecraft ...

Hubble is still going strong 35 years after it was launched into space. Celebrate its anniversary with some out-of-this-world images.

In the years since, Hubble has gathered more than 1.6 million observations and 430 terabytes of data. The telescope has ...

How can you fairly compare one telescope to another? It's all in the (angular) resolution. The entire point of introducing ...

Hubble’s three-and-a-half-decade lifetime has allowed astronomers to observe cosmic objects over extended periods to see how ...

Celebrate International Dark Sky Week by hosting a backyard stargazing party. Experts suggest optimal timing with clear skies and minimal moisture for ...

Summer is quickly approaching and with warm nights coming, the clearer skies beckon stargazers to look up and explore the ...

The subject of space exploration has been one of the most enigmatic and interesting topics of all time. When taught about ...

The Daniel K. Inouye Solar Telescope, the world's largest solar telescope, can see the sun in unprecedented detail. Here is ...

Or take a road trip and visit Kitt Peak National Observatory near Tucson for a glimpse through world-class telescopes, or head to Mount Lemmon SkyCenter for an unforgettable stargazing experience.

April 21 - 28 is International Dark Sky Week, a global celebration of the night sky during which like-minded organizations ...