It may no longer be the national observatory, but its biggest telescopes have landed new scientific projects.
The Nicaragua explosion claim was intriguing to asteroid watchers.
NASA funds five proposals for far-out projects and two are based in Tucson.
OSIRIS-REx will grab a piece of an asteroid; the Large Synoptic Survey Telescope will explore the mysteries of the universe.
This week’s big pulse of water into the long-parched Colorado River Delta will be one of the most studied water releases ever.
The ice-covered ocean of Jupiter's moon is the prime spot to look for life in our solar system, they say.
The sun-grazing comet could come back brighter than ever or fizzle out completely
Throwing flying discs into targets seems like all fun and games.
The University of Arizona's astronomy graduate students hope to persuade their department, their college and the Board of Regents to acknowledge them as astrophysicists as well as astronomers.
By taking the twinkle out of starlight, the team produced the clearest images ever taken.
LOS ANGELES — NASA’s Kepler planet-hunting telescope is broken, potentially jeopardizing a mission that opened up whole new possibilities on life outside the solar system.
The GOP has learned to stop worrying and love the sequester.
The space shuttle that flew on NASA’s next-to-last shuttle flight is expected to make an appearance Thursday in the skies over Tucson as it heads to its final home in California.
PASADENA, Calif. — In a show of technological wizardry, the robotic explorer Curiosity blazed through the pink skies of Mars, steering itself to a gentle landing inside a giant crater for the most ambitious dig yet into the red planet's past.
WASHINGTON — Sally Ride, who blazed trails into orbit as the first American woman in space, died Monday of pancreatic cancer. She was 61.
A trio of rock hunters have donated two fingernail-sized samples of the meteor that blazed across Nevada and California last month to the UA Lunar and Planetary Lab.