Science

Mysterious Foot Fossil Reveals New Hominin Species

Discovery in Ethiopia provides evidence of two bipedal human ancestors living side-by-side 3.2 million years ago.

DNA Clues and Challenges in Nancy Guthrie Disappearance and Other Cold Cases

Investigative genetic genealogy is unlocking decades-old mysteries, but mixed DNA samples and limited database access pose hurdles.

Phoenix's Rosy-Faced Lovebirds Thrive in the Desert

The largest colony of these African parrots outside their native range has adapted to the Arizona climate by nesting near air conditioning.

Sedona Author to Discuss UFO Disclosure and Humanity's Vertical History

Alan Steinfeld's presentation will explore how the reality of UFOs demands a rewriting of the human story.

Seeing Earth's Shadow Without a Lunar Eclipse

Tucson astronomer shares tips for spotting our planet's shadow in the sky

Supermassive Black Holes Found to 'Kill Off' Neighboring Galaxies

New research suggests active supermassive black holes can suppress star formation across intergalactic scales.