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 from the Fundamental Physics Prize Foundation.
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 between the sun setting and the comet dropping beneath the western horizon.
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 flight to Mars.
The couple spent two years inside Biosphere 2, emerging from the experiment in conta…
A University of Arizona astrophysicist who made astronomical breakthroughs without ever looking through a telescope lens will deliver a public talk Monday.
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 rewarded with a good meteor show.
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 streaking meteors.
Plans to transform Kitt Peak’s largest telescope into an instrument capable of mapping the universe in an effort to understand dark energy were boosted Tuesday with a $2.1 million grant from the Gordon and Betty Moore Foundation.
The importance goes beyond the ocean’s critical role in balancing the planet’s health, he said.
Want to learn about math or astronomy Monday?
Tucson’s newest “genius” — University of Arizona astronomer and optical scientist Olivier Guyon — won’t be using his MacArthur Foundation grant of $100,000 a year for five years to buy himself time to think big thoughts.
You still have to wait until 2015 to see Pluto up-close and personal, but astronomers have produced the best picture ever taken of the distant ice-ball from a telescope on the ground.
Steward Observatory kicks off its public lecture series Wednesday, with a talk by astronomer Don McCarthy on the 50th anniversary of a speech by President John F. Kennedy that described the rationale for planning a human mission to the moon.
Oro Valley-based Ventana Medical Systems said it is introducing a first-of-its-kind, fully-automated sample staining technique that will allow researchers to examine two key indicators related to cancer in the same section of tumor tissue.
NASA has announced a contest to name the asteroid targeted for exploration in a mission led by the University of Arizona's Lunar and Planetary Lab.
The McMath-Pierce Solar Telescope is the image I selected for the "Scientific Bent" blog for some obvious reasons. It reeks of science and it has that marvelous angle.
A Phoenix-based company is working on new concentrating photovoltaic (CPV) technology that shares some striking similarities with a system under development in Tucson by University of Arizona astronomy professor Roger Angel.