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After years of anticipation, the international Event Horizon Telescope Collaboration presented the first image of the black hole located at the center of our own Milky Way galaxy, called Sagittarius A*. Scientists had previously suggested the presence of a black hole at this location, but there was no direct visual evidence until now.
Snapping an image of a black hole is just the beginning, says researcher Chi-Kwan "CK" Chan. To really understand the image, it must be compared with black hole simulations. UArizona worked with partners to create the world's largest simulation library.
UArizona astrophysicists Feryal Özel and Dimitrios Psaltis identified Sagittarius A* as an ideal target black hole more than 20 years ago. They call it a "Goldilocks black hole," with an environment "just right" for capturing an image.
During a visit to campus, NASA Deputy Administrator Pam Melroy discussed some of the space agency's most ambitious and impactful space missions with the UArizona early-career scientists who pursue them.
Parkinson's disease is perhaps best known for its movement-related symptoms, but it can also hinder vocal production. New research suggests that a specific gene commonly associated with Parkinson's may be behind those vocal issues – a finding that could help lead to earlier diagnosis and treatment for Parkinson's patients.
A new decadal survey from the National Academies of Sciences, Engineering, and Medicine recommends NASA fully support NEO Surveyor, a space-based survey designed to discover and measure asteroids and comets that could pose an impact hazard to Earth. Amy Mainzer, a professor of planetary sciences, leads the effort.
The Arizona COVID-19 Genomics Union, which was co-founded by renowned UArizona virus expert Michael Worobey, celebrates a major milestone on its mission to stay ahead of the SARS-CoV-2 virus as it evolves.
Tree-ring, ice core and volcano experts teamed up to identify one of the most climatically impactful volcanic eruptions in 4,000 years – Aniakchak II. In the process, they narrowed down potential dates for the infamous Thera eruption.
To understand the unique experience of Black grief, it's necessary to consider the collective grief Black Americans have suffered as the result of America's long history of racialization and racist violence, UArizona experts say.
For the seventh year in a row, UArizona hurricane forecasters predict an above-average hurricane season, beginning June 1. Their forecast shows 14 named storms and seven hurricanes developing over the Atlantic Ocean.
