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Using observations of the nearby elliptical galaxy Centaurus A, a team of astronomers found an unprecedented number of possible globular clusters – old, dense groups of thousands of stars that all formed at the same time.
University of Arizona astronomers will help NASA's James Webb Space Telescope peer deeper into the universe than any telescope in history. Webb successfully launched on Christmas Day.
Researchers have identified the first signature of a magnetic field surrounding a planet outside of our solar system. Earth's magnetic field acts as a shield against energetic particles from the sun known as the solar wind. Magnetic fields could play similar roles on other planets.
The brightest comet of the year, named after the UArizona researcher who discovered it, is paying one last visit to Earth's neighborhood before leaving the solar system forever.
A team led by UArizona astronomers will use NASA's James Webb Space Telescope to examine three of the most distant active supermassive black holes known, as well as their host galaxies.
Astronomers have discovered a structure thought to be a "protocluster" of galaxies on its way to developing into a galaxy supercluster. The discovery was made possible, in part, by the UArizona-managed Large Binocular Telescope.
By combining Hubble Space Telescope observations with theoretical models, a team of astronomers has gained insights into the chemical and physical makeup of a variety of exoplanets known as hot Jupiters.
NASA's new flagship space observatory has arrived in French Guinea, where it will be readied for launch on Dec. 18. UArizona astronomers Marcia and George Rieke played key roles in designing and building the telescope's infrared "eyes," which will peer deeper into the cosmos than ever before.
