The scientist has outlined the 'potentially devastating and irreversible long-term impacts' of unknown organisms in space ...

Scientists are calling for a lunar quarantine facility where samples from Mars, the Moon, and beyond would be examined before being brought to Earth. They warn that even a tiny alien microorganism ...

In new footage from National Geographic’s cameras on board the NASA mission, Reid Wiseman and Jeremy Hansen talk about naming ...

Genesis Owusu, Madi Diaz, Citizen, The Mountain Goats, Disgusting Sisters, Cornelius, Squirrel Flower, Amon Amarth, Asher ...

Salman Rushdie, the most prominent literary figure to appear at the Tucson Festival of Books in its 17 years, spoke to about a thousand people Sunday from a festival stage at the University of Arizona ...

A team of astronomers discovered that the spiral arms of the Milky Way galaxy may stretch farther out into space than was previously known. The scientists made precise distance measurements of dust ...

A company that heavily lobbied President Trump is part of the lucrative business of constructing the new steel wall along the border in Arizona. An up-close look at the 30-foot-tall, rust-colored ...

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While many residents stay indoors during extreme heat days, outdoor workers — including roofers — have no choice but to work through some of the hottest conditions of the year. Police believe illegal ...