Learn how unexpected discoveries involving black holes, tree-ring dating, planets and plastics have helped shape scientific research. The weekly series runs Feb. 7-28.

New images taken with the James Webb Space Telescope reveal intricate, never-before-seen structures and features hidden in visible light. The insights will help astronomers better understand the history of the Milky Way.

The specimen of the mineral stibnite was extracted in 2003 from the Wuling Mine in southeastern China and is exceptionally rare for its size, intricacy and quality.

Embracing the unexpected can create opportunities that lead to new explorations, new knowledge and new discoveries. That idea is at the center of the 19th annual College of Science Lecture Series, which will take on the theme of "Surprise Twists That Transformed Science."

In the same lab where university scientists invented ways to study climate history in tree rings, associate professor Bryan Black is using a similar technique – but with tiny fish bones.

NASA scientists last week removed the two stuck fasteners on the sample container that had prevented researchers from accessing much of OSIRIS-REx's asteroid Bennu sample.

With a new installation on Tumamoc Hill, a University of Arizona experimental philosopher wants to encourage people to imagine 1,000 years into the future – and plan accordingly.

Under the leadership of the University of Arizona's Dani Mendoza DellaGiustina, the former OSIRIS-REx spacecraft sets off on a journey to study asteroid Apophis and take advantage of the asteroid's 2029 flyby of Earth.

For 20 years, MEAD has welcomed, engaged, and appreciated thousands of educators, both in-state and beyond. An impressive list of sponsors ensures that all Arizona teachers can experience research-based, high quality professional development at no cost.

A new partnership among the Arizona Commission for the Deaf and the Hard of Hearing and the three state universities provides free hearing health care for eligible people age 21 or older who do not have insurance.