Plants and animals were not always as colorful as we see them today. University of Arizona evolutionary biologist John Wiens discusses the evolution of color for plant and animal species that developed hundreds of millions of years ago.

The fight against COVID-19 became part of our lives four years ago. Researchers are still working to find out how to it started. University of Arizona immunobiologist Michael Worobey discusses the latest findings and considers the possibilities of new pandemics brewing around the globe.

The James Webb Space Telescope is giving astronomers a closer look at the creation and development of planets. University of Arizona planetary scientist Ilaria Pascucci discusses a new study on protoplanetary disks, described as a cradle where new planets are born.

Kitt Peak National Observatory has reopened to the public after closures due to the pandemic and a mountain wildfire. Visitors Center Operations Manager Peter McMahon talks about what people can see and do among the largest collection of scientific research telescopes in North America.

Scientists are learning more about dogs and their special communicative link with people.

Developments over the past decade have demonstrated the complexities of collecting and interpreting big data.

Scientists are catching up with the evolution of diet among animal species.

The Large Binocular Telescope has been observing planets, stars, and galaxies from atop Mount Graham since 2005. Telescope staff scientist Al Conrad discusses the most recent pictures it captured of Jupiter's volcanic moon Io.

Astronomers with the University of Arizona-backed Vera Rubin Observatory are on track to start their work early next year. Project outreach and education director Alan Strauss discusses how they will use the largest camera ever built to take a highly-detailed time-lapse look at our universe.

Scientists say 95 percent of the thickest ice in the Arctic Ocean has already melted. Now they are focusing on ice melt from inland glaciers in the Northern Hemisphere and how it's affecting sea level rise. University of Arizona planetary scientist Jack Holt is leading a team trying to predict how glaciers build and retreat in response to climate change.

Atomic particles move at one quintillionth of a second. University of Arizona physicist Mohammed Hassan is developing instruments that can detect light pulses in attoseconds, providing a new tool to measure quantum states of matter.