FBI and sheriff's personnel continue to search for Nancy Guthrie in the Tucson area. No suspects have been named as search ...

Pima County Sheriff Chris Nanos said the results that investigators have received from DNA testing in the Nancy Guthrie case ...

One might not imagine such a time being conducive to the existence of fragile lifeforms, yet it is likely to be the era in which Mars was most habitable ...

Dust from asteroid Bennu is revealing a surprising origin story for life’s building blocks. New research suggests some amino acids formed in frozen ice exposed to radiation, not warm liquid water as ...

Organic compounds found in Mars rocks are too abundant to rule out the possibility of Martian life in the red planet’s history, NASA scientists say.

Penn State researchers think a key ingredient for life may have formed in deep freeze, not in a warm asteroid puddle. A space sample with a new twistScientists at Penn State; led by geoscientist ...

The curious minds at What If imagine a meteorite crashing straight into your home, examining the instant destruction and aftermath of such an event.

Analysis of a space rock that landed on a frozen Michigan lake revealed a rich array of extraterrestrial organic compounds. Learn how the meteorite might have been incorporated into life on Earth.

For all but two NFL teams, the offseason is underway, and what an offseason it's been already. Ten head coach vacancies emerged, and just six have been filled. The Arizona Cardinals, Buffalo Bills, ...

Police and university officials are investigating the death of an 18-year-old NAU student after an off-campus fraternity rush event in Flagstaff.

Arizona college student dies after allegedly attending fraternity rush event at Northern Arizona University. Three Delta Tau ...

Three Northern Arizona University students and members of the Delta Tau Delta fraternity were arrested in connection with the death on Saturday, Jan. 31 Google Maps A male student, 18, of Northern ...