Welcome to what promises to be a great year at the University of Arizona and the College of Science!

A newly discovered impact crater below the seafloor hints at the possibility that more than one asteroid hit Earth during the time when dinosaurs went extinct. UArizona researcher Veronica Bray, who specializes in craters found throughout the solar system, is co-author of a new study about the discovery.

Nature is full of patterns. Among them are tiling patterns, like what you see on a giraffe's coat. But what makes these natural patterns form? A new UArizona study uses bacteria to help answer that question.

University of Arizona students and faculty members completed a comprehensive study to track and characterize satellites, using a ground-based sensor they developed to measure satellites' brightness, speed and paths through the sky.

Tech Launch Arizona, the university's commercialization arm, recorded 303 novel inventions between July 1, 2021, and June 30 – the most invention disclosures registered for a single year in UArizona history.

Researchers have developed a new class of drugs that is able to cross the blood-brain barrier. The technology has been licensed to the startup Teleport Pharmaceuticals.

Analyses based on locations and viral sequencing of early cases indicate the COVID-19 pandemic started in Wuhan's Huanan Seafood Wholesale Market, with two separate jumps from animals to humans.

After decades of development, a nail-biting launch and months of space travel and commissioning, NASA has released the first images captured by the James Webb Space Telescope. The images hint at the beginning of years of space science, made possible in part by the 21 UArizona researchers who have played a role in developing and managing Webb's onboard instruments.

Before-and-after data from the few seconds it took the OSIRIS-REx spacecraft to collect a sample from asteroid Bennu revealed a surprise: The particles of Bennu's exterior are so loosely packed, they act more like a fluid than a solid.

In many cases of epilepsy – which disrupts electrical activity in the brain and often results in seizures – the underlying cause is unknown. UArizona researchers may have found an explanation for some forms of epilepsy.