Orbital space around Earth has become congested and competitive. The Space4 Center is developing solutions to ensure that the use of orbital space remains sustainable and safe.

To mark the lecture series' 100-year anniversary, an evening celebration will include a presentation on the newest science to come out of the James Webb Space Telescope, a chance to peer at the sky through telescopes, recognition of a new endowed chair and the opening of Steward Observatory's visitor center.

NASA's DART spacecraft will slam into an asteroid this month, and scientists will study how the impact affects its orbit around a larger, companion asteroid discovered by UArizona researchers in 1996.

The partnership will provide university faculty, students and other partners with a forum to collaboratively address pressing challenges of human security, exploration, development and settlement of space.

After years of preparation and anticipation, exoplanet researchers are ecstatic about the first official scientific observation of an exoplanet by NASA's James Webb Space Telescope. The results are indicative of Webb's ability to spot key molecules like carbon dioxide in a wide variety of exoplanets.

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.

The Large Binocular Telescope is unrivaled in the global arsenal of optical telescopes. Sporting two 27-foot mirrors made at UArizona, its unique design allows astronomers to make observations that would not otherwise be possible.

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.

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.