OSIRIS-REx will catch up to Asteroid Bennu in 2018, return sample to Earth.
NWS: Year expected to be warmest on record.
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.
Many in attendance have close ties to the historic Rosetta mission.
European Space Agency's historic landing on a comet provides "ground truthing" for a wealth of data already collected.
They identify a bigger, younger analog to our solar system.
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.
Del Strunk and friends at McSally headquarters. He's hoping for a "clean sweep."
Mark Spear and his dark horse candidate "undervote" at the Pima GOP party.
Tucson firm started in a backyard workshop.
Monday could bring first taste of 40s in more than six months.
This image of Jupiter shows a moon shadow on the giant planet's Great Red Spot.
See today's partial eclipse through the McMath-Pierce solar telescope on Kitt Peak.
Events at the University of Arizona and Pima College will allow you to view the eclipse without harming your eyes.
Tucson could "get a piece" of new Photonics Manufacturing Institute.
UA's HiRISE camera caught the speeding bullet of a comet Sunday.
It may no longer be the national observatory, but its biggest telescopes have landed new scientific projects.
Erstwhile hurricane produced well-behaved storms that soaked without flooding badly.
Two supervisors have concerns about plans to bypass Tucson with new freeway.
Unless you're enough of an lunar fanatic to wake up at 3 a.m., a total eclipse of the moon will occur while you are sleeping tomorrow morning.
The lunatics will be up early Wednesday, and even if you’re not all that crazy about the moon, you might want to join them to view a full eclipse.
Dante Lauretta: NASA missions should inspire future scientists.
"Big science" doesn't come cheap. Unidentified donor gives $20 million for Chile project.
Some areas saw twice their rainfall average. Phoenix might be the biggest story.
A 2015 mission will add to enthusiasm for the recently demoted "dwarf."
Streetcar's allure is partly aesthetic, Star's Tom Beal concedes.
The donation is from the estate of philanthropist Agnese Nelms Haury.
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.
Tucson's rain totals were impressive, but the rain in Phoenix was historic.
Most of the land burned in Arizona wildfires this year was managed.
The Tucson museum will exhibit 40 objects in its collection of treasures.
New star projector ain't much to look at, but sure can project.
A wet August boosts monsoon rain totals everywhere — except at Tucson airport.
Most of us won't lose brain cells or significant amounts of memory as we age.
The Arizona State Museum is adapting its venerable building to modern uses.
$9 million donation could help ease shortage of large-animal doctors.
A sea turtle chose a welcoming, posh beachfront, but the wrong month.
NASA funds five proposals for far-out projects and two are based in Tucson.
Meet Chris Impey — a natural showman with a knack for explaining science.
ASU's Charles Arntzen pioneered the plant biotechnology that led to an Ebola treatment.
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.
Two Oracle-area couples claimed their properties were destroyed in a backburn during the Bullock Fire in 2002.
We now know the beasts roamed North America as recently as 13,000 years ago.
UA researchers sequenced the gene of African rice and traced its evolution.
Most of Pima County received two to three inches of rain during July.