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Cars moving through Tucson.

Study: Ignoring Climate Change Could Mean Billions In Road Repairs

Researcher says building infrastructure using outdated climate models will result in high costs down the line.
Image from a video illustrating the path the OSIRIS-REx spacecraft is projected to take on its way to the asteroid Bennu.

Earth's Gravity to Slingshot Asteroid-Bound Spacecraft to Target Friday

Maneuver uses Earth's gravity rather than fuel to put OSIRIS-REx on course.
A view of Tucson from Tumamoc Hill.

Pima County to Get Regular Air-Quality Forecasts

State environmental department to provide a 5-day outlook for the county.

UA Telescope Gets First Look at OSIRIS-REx

Spacecraft passing Earth soon for slingshot to asteroid Bennu.
Star-gazing at Kartchner Caverns State Park.

Lights Go Out at Kartchner Caverns, Newest Dark-Sky Park

Managing artificial light benefits astronomy, wildlife and humans, association director says.
Applying sunscreen can prevent skin cancer.

Skin Won't Absorb New UA-Developed Sunscreen

The product was developed with assistance from Tech Launch Arizona.
The Tucson Convention Center exhibit halls fill with students' exhibits at the annual Southern Arizona Research, Science and Engineering Foundation fair.

Southern Arizona Science Fair in the Running for $100K Innovation Award

The Drucker Foundation points to science fair organization's data and evidence emphasis.
This false-color composite image, constructed from data obtained by NASA's Cassini spacecraft, shows the glow of auroras streaking out about 600 miles from the cloud tops of Saturn's south polar region. The image was taken by the University of Arizona-led Visual and Infrared Mapping Spectrometer.

UA Camera to Snap Final Pics for Saturn Mission Before Crashing into the Planet

The spectrometer aboard Cassini has provided clues to the processes at work around Saturn.
The Salt River Canyon Bridge in central Arizona.

Algae Levels Down, Lakes Cleared for Fishing

Tournaments can resume at the Salt River reservoirs.
Strawberry tomatoes grow on the vines of a greenhouse run by students at the University of Arizona's Controlled Environment Agriculture Center.

Yuma Farmer Selected for Agriculture Advocacy Program

He's one of 10 who will learn how to raise awareness in the public about how food arrives at plates.
Bark scorpions glow white under a black light.

Rare Whole Genome Duplication Gave Rise To Arizona Bark Scorpion

Research has found its origins in an abrupt and massive genetic event.
A map of the path of the total solar eclipse occurring Aug. 21, 2017.

Tucsonan: Path of Totality 'Well Worth It'

He made the trip to Wyoming to get the full experience, and encourages people to see the next one in 2024.
Kids viewing an eclipse with solar viewing glasses

Without Eye Protection, Even a Peek at the Eclipse is Dangerous

Children and young adults are particularly at risk without safety glasses.
On Jan. 4, 2011, the Hinode satellite captured these breathtaking images of an annular solar eclipse.

Do You Have a Plan for the Eclipse? Here Are Some Ideas

The Great American Eclipse is coming to a sky near you.
The Flandrau Science Center and Planetarium (left) and the Kuiper Space Sciences Building (right) on the University of Arizona campus.

UA Opens Science Classes to the Community

The school is offering reduced tuition to attend lectures in many subjects.
A bacterial "soup" transfers a key gene to the plant, enabling it to produce a high yield of vaccine protein components in its leaves.

Scientists Use Tobacco Plant As Cheap, Scalable Zika Vaccine Factory

The plant-based approach could be a more viable solution for low-to-middle-income countries.

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