The bighorns of Tiburón were 'unintentionally rewilded'
For the next 100 days, we plan to tell the story of “Tucson in 100 objects,” beginning today with the chimichanga.
Fire restrictions are a reaction to wildfires across the state
It's not too hot to boil away water, nor too cold to totally freeze it — but whether it's 'just right,' we may never know.
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."
Air tankers, including a DC-10 large air tanker have been dropping retardant to slow the growth of a 96-acre fire in the Huachuca Mountains.
The find adds more proof to a theory that complex neurological systems, including the base features of human brains, evolved in ancient sea creatures.
OSIRIS-REx will grab a piece of an asteroid; the Large Synoptic Survey Telescope will explore the mysteries of the universe.
Researchers winning fellowships named for Sagan, Einstein and Hubble will study at the Department of Astronomy and the Lunar and Planetary Lab.
The stage is set for wildland fires, but they don't have to start, say land managers.
Scientists who discovered a new dwarf planet far behind Pluto say evidence is mounting for the existence of a 'super-Earth' at the edge of the solar system.
Astronomer Lori Allen said the discovery of the most remote orbiting object in our solar system is “terrific news” in itself, but also for the instrument that found it.
Astronomers have discovered the farthest "dwarf planet" and it points to an even bigger planet hiding at the edge of our solar system.
Astrobiologists hope an array of new telescopes and space missions, combined with technological leaps, will lead to evidence of life on exoplanets.
John Hildebrand yearns for a 'Sputnik moment' to spur support of scientific research.
Goals of the young scientists range from counting candy to curing cancer.
The "ocean" inside the enclosed environment outside Oracle will be drained and rearranged to accommodate ocean species from the Gulf of California.
Owner of 'super-marketing' firm says spillover from Congress Street revitalization will invigorate nearby neighborhoods.
Climate change could make forest losses permanent.
Animals are more capable of surviving in the wild; We can write poetry.
Full-out preparation for fire season may not be enough in a year when winter disappeared.
Arizona doesn’t get swarms of monarch butterflies migrating between their summer habitats up north and the mountains of Mexico where they spend the winters, but they are a dependable presence.
Nearby regions of the brain can take on reading, writing and speaking tasks lost to brain damage from stroke or trauma.
Giving the first University of Arizona building a new purpose, while keeping its history and extending its life, is an architectural puzzle.
Neurosurgeon G. Michael Lemole, Jr., says equanimity of spirit is necessary to persevere after failure.
Scrapped airplanes get new life from Raytheon engineer in Oro Valley backyard
After the third warmest January on record, 60-degree days could be a shock.
A revolution in our understanding of the brain is underway, says the second speaker in the University of Arizona's "Evolving Brain" series.
The first in a series of UA College of Science lectures on the 'Evolving Brain' suggests a lowly origin for the impressive human cranium.
Gresham designed modern buildings with an appreciation of their historical setting.
A deliberately set backfire, not the Bullock Fire, caused the damage in 2002, they contend
The Arizona Food and Finance Forum opens with a look at how Spanish mission orchards are being revived in Arizona.
Kowalski doesn't want to be the guy who finds the asteroid headed for Earth that will wipe out our species. But that's pretty much his job description these days: Watch the skies. Sound the alarm.
Weekes, a pioneer of gamma-ray astronomy, searches for the enormously energetic particles coming from pulsars, supernovae and black holes.
But first she wants to challenge them with some complex puzzles.
VISION House is the most energy-efficient project of a long career in solar-home building.
The NASA asteroid-sample return mission being led by the UA's Lunar and Planetary Lab is less than three years away.
Malcolm Hughes, Diana Wheeler and Katrina Miranda join 45 UA colleagues previously honored
On Friday, the Steward Observatory Mirror Lab unveiled the third giant petal for a telescope that, if built today, would be the world's largest.
Vanessa Bailey led a team that found a Jupiter-sized planet orbiting far from its host star, upsetting accepted theories of planet formation.
A French designer has created the first art book of HiRISE camera images of Mars
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
The sun-grazing comet could come back brighter than ever or fizzle out completely
Those who knew him and those who didn't felt a great sense of loss.
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
The biggest telescopes on the mountain will have to find new uses, new users and new money in the coming years.
A two-mile stretch near Picacho Peak is the deadliest portion of Interstate 10 in Arizona, killing at least eight people in more than 50 crashes since 2000.