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Earth

Arizonans make big impact on top science stories in 2015

Arizonans make big impact on top science stories in 2015

Our first good look at Pluto is no-brainer at No. 1.

December 29, 2015 7:14 pm Video Photos

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Space junk crashing toward Earth found by Mount Lemmon lab

Space junk crashing toward Earth found by Mount Lemmon lab

The debris, catalogued as WT1190F, is not the only space visitor being watched this week.

October 28, 2015 7:50 pm Video Photos

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Blood-red supermoon rises Sunday

This lunar eclipse begins conveniently at sunset

September 24, 2015 5:30 pmLoading…
Bennuval celebrates NASA mission with music, comedy, art and acrobatics

Bennuval celebrates NASA mission with music, comedy, art and acrobatics

NASA mission incorporates music, comedy, art and acrobatics in public outreach.

September 09, 2015 8:30 amLoading…
Your map to Saturday's 'supersized' full moon

Your map to Saturday's 'supersized' full moon

Tim Hunter's guide to the supermoon.

August 27, 2015 6:00 amLoading…
William Dickinson, UA plate tectonics leader, dies at age 83

William Dickinson, UA plate tectonics leader, dies at age 83

Dickinson's expertise ranged from plate tectonics to archaeology.

July 28, 2015 7:55 pmLoading…

Look for Saturn to be extra bright on Friday

Scorpius the Scorpion rises this week with the bright red star Antares at its heart.

May 20, 2015 4:49 pmLoading…
Sky Spy: Venus is the current 'evening star'

Sky Spy: Venus is the current 'evening star'

Venus is our current “evening star.” 

April 29, 2015 8:00 amLoading…
'Life in the Universe' lecture series continues Monday

'Life in the Universe' lecture series continues Monday

UA biologist to talk about interactions that lead to complex organisms.

February 14, 2015 7:34 pmLoading…
Life evolved after planets formed

Life evolved after planets formed

Asteroids and comets may have provided the spark but life needs a planet or moon to evolve.

January 31, 2015 7:13 pmLoading…
Tucson science series ponders the unknowable

Tucson science series ponders the unknowable

Brother Guy says he won't answer the question 'What is Life?' in his opening lecture.

January 24, 2015 7:55 pmLoading…
NASA's Halloween photo of Jupiter

NASA's Halloween photo of Jupiter

This image of Jupiter shows a moon shadow on the giant planet's Great Red Spot.

October 28, 2014 11:00 amLoading…

Sky Spy: Summer solstice is time to remember our forebears

Even though it has been hot and has felt like summer for weeks, it officially begins this Saturday at 3:51 a.m.

June 19, 2014 12:00 amLoading…
Report: Southwest faces increased threat from drought, wildfires and heat

Report: Southwest faces increased threat from drought, wildfires and heat

Temperatures in the Southwest are rising faster compared to those of the U.S. as a whole, a new White House report ion climate shows.

May 06, 2014 10:02 am Related Loading…
Tucson is epicenter of meteorite strike, rock hunt

Tucson is epicenter of meteorite strike, rock hunt

Tucson is the epicenter of a meteorite hunt after a shower of space rocks landed north of the city Tuesday night.

December 11, 2013 2:44 pm Photos

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Rosemont meets almost all environmental laws, final federal report says

Rosemont meets almost all environmental laws, final federal report says

The Forest Service laid much of the groundwork Friday for approval of the Rosemont Mine by releasing a final environmental report saying essentially that while the mine will cause negative impacts, it’s now clearly in line with nearly all environmental laws.

November 30, 2013 12:00 amLoading…
A dubious achievement for humanity

A dubious achievement for humanity

Earlier this year, scientists at the NOAA Mauna Loa Observatory in Hawaii announced a major threshold in the Earth system had been crossed: the concentration of the greenhouse gas carbon dioxide in Earth’s atmosphere has now passed a level not seen in the last 3 million years.

September 29, 2013 12:00 am Photos

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Oceans absorbing more global heat, UA researcher says

Much of the heat that was supposed to fire up the globe’s air in the past 15 years — but didn’t — has gone into the ocean, a University of Arizona oceanographer said Friday.

September 28, 2013 12:00 amLoading…

We've met state goal of groundwater balance

Despite years of growing concern about drought, some good water news has emerged: The Tucson area has balanced its water pumping with recharge more than a decade ahead of schedule.

September 07, 2013 12:00 amLoading…
Forest Service: Rosemont doesn't threaten prized creek, canyon

Forest Service: Rosemont doesn't threaten prized creek, canyon

Davidson Canyon and Cienega Creek — linchpin issues for many who oppose the Rosemont Mine — aren’t in as big a danger from mine impacts as many people think, the U.S. Forest Service says.

September 03, 2013 12:00 am Photos

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