OSIRIS-REx will catch up to Asteroid Bennu in 2018, return sample to Earth.
Brother Guy Consolmagno challenges his own findings about the giant asteroid Vesta.
NASA's first mission to Pluto will begin sending images to Earth early next year.
European Space Agency's historic landing on a comet provides "ground truthing" for a wealth of data already collected.
Two talks this week on the UA campus bring astronomy to the general public.
Biospherians Taber MacCallum and Jane Poynter hope to help new business take off.
Events at the University of Arizona and Pima College will allow you to view the eclipse without harming your eyes.
See today's partial eclipse through the McMath-Pierce solar telescope on Kitt Peak.
Mike Leuthold of the University of Arizona's Atmospheric Sciences Department concluded early Wednesday that Odile's moisture would miss Tucson.
The Nicaragua explosion claim was intriguing to asteroid watchers.
NASA funds five proposals for far-out projects and two are based in Tucson.
Researchers at ASU's Biodesign Institute pioneered the use of tobacco plants to produce antibodies.
The LSST promises the widest, deepest, fastest view of the cosmos.
We now know the beasts roamed North America as recently as 13,000 years ago.
NASA has chosen seven instruments for the next Mars rover mission, set to launch in 2020.
Most of Pima County received two to three inches of rain during July.
Effort ensures production of mirrors here for the Giant Magellan Telescope.
Sunday's open house highlights contributions UA planetary scientists made to that first moon walk 45 years ago.
The new planet is not too hot to boil off its water nor too cold to freeze it solid. It's in the just-right "Goldilocks Zone."
Astronomers have discovered the farthest "dwarf planet" and it points to an even bigger planet hiding at the edge of our solar system.
Find out the latest from the crew of comet watchers on Kitt Peak
Astronomers gathered at Kitt Peak's McMath-Pierce Solar Telescope are elated, despite cloud cover that is keeping comet hidden for now
Author Paul Bogard says preserving darkness in important to all of us, not just astronomers.
Learn the latest olfactory science at Tuesday's Science Cafe
Monday includes a look through the historic telescope at Steward Observatory. Tuesday features pizza. Wednesday promises happiness.
Arizona’s oldest observatory has published its first scientific results from its newest telescope.
International Observe the Moon Night is Saturday
Comet Ison is looking pretty good as it approaches the sun, with a big, long tail and a greenish hue.
The University of Arizona's astronomy graduate students hope to persuade their department, their college and the Board of Regents to acknowled…
We've all inhaled gnats or eaten bugs in flour but at the Arizona Insect Festival, you can eat them with intention, while you learn about the …
Explore the cosmos, visit the rain forest and learn the secret of happiness in a series of scientific lectures this fall.
Two environmental researchers from the University of Arizona will talk about their adventures in the Amazon Basin Thursday at Borderlands Brew…
Shortly after their funding was renewed for another five years in June, University of Arizona researchers lost one of their critical-zone rese…
If you went outside and waved and smiled at Saturn Friday, here'e your photo.
NASA’s Cassini spacecraft is going to take our picture Friday afternoon and the space agency is encouraging us to go outside and wave at the c…
A red-flag warning is in effect for Southeastern Arizona from noon today until 8 p.m. and again on Saturday afternoon through evening.
Joe Polchinski, professor at the Kavli Insitute for Theoretical Physics at UC Santa Barbara, has won one of three Physics Frontiers Prizes fro…
Comet Pan-STARRS is staying up later, but it's getting dimmer even as the moon gets brighter, making it a tough catch.
Gates Pass is getting crowded at sunset with crowds of comet watchers, trying to catch a glimpse of Pan-STARRS in the short window of time bet…
Comet Pan-STARRS continues to make a brief appearance on the western horizon this week, but is difficult to see with the naked eye.
The first comet of the year visible from the Northern Hemisphere sits low on the western horizon for the next few days.
Jane Poynter and Taber MacCallum kept their relationship alive inside Biosphere 2 and now they'd like to test that relationship on a long …
A University of Arizona astrophysicist who made astronomical breakthroughs without ever looking through a telescope lens will deliver a public…
Meteor 2012 DA14 streaked by Earth shortly before 12:30 p.m. Tucson time.
We're not talking about "The Rise and Fall of Ziggy Stardust and the Spiders From Mars," that 1972 concept album by David Bowie.
It's that time of year when astronomical outfits release their loveliest, stitched together, false-color images of various parts of the universe.
I'm guessing that anyone who got up in the middle of the night to drive out to some dark locale and watch the sky last night was amply rewarde…
Watch the skies tonight for the shooting stars of the Geminid Meteor shower.
The annual shooting-star show known as the Geminids coincides this year with a new moon — meaning plenty of dark skies to highlight the streak…