A person spotted the crash site and reported it.
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Astronomers trying to figure out how galaxies interact.
Astronomers and sky watchers say more light downtown would affect their work.
The toe-tapping harmonies of the Tucson Barbershop eXperience flowed freely from the rehearsal room and into the hallway of the Tucson Jewish …
The biggest telescopes on the mountain will have to find new uses, new users and new money in the coming years.
If the sun-grazing comet survives its close approach with the sun in November, it could be visible to the naked eye in December.
A telescope about the size of a decent camera, operated from a tiny observatory in Sonoita, has discovered its third exoplanet.
Kitt Peak National Observatory
The sonic boom over Tucson that rattled windows and nerves Wednesday night was caused by a fighter jet that broke the sound barrier while trai…
New plans for Kitt Peak's largest telescope were boosted Tuesday with a $2.1 million grant from the Gordon and Betty Moore Foundation.
Even though Kitt Peak National Observatory is "oversubscribed," meaning it has more scientists who want to use it than it can accommodate, off…
Two wildlife crossings on Ajo Highway near Kitt Peak will cost about $1.2 million - nearly 60 percent more than expected.
Timothy D. Swindle was named director of the UA's Lunar and Planetary Laboratory Monday - the very day NASA proposed scrapping two Mars missio…