Space & Security

Using a cutting-edge adaptive optics system developed at the University of Arizona's Steward Observatory, a growing planet outside our solar system has been discovered to inhabit a gap in a disk of dust and gas, providing a glimpse of what our solar system likely looked like during its infancy.

Three new papers reveal yet more secrets from samples collected by the University of Arizona-led OSIRIS-REx mission from asteroid Bennu.

New observations that U of A astronomers helped make with the James Webb Space Telescope solidify previous hints of a giant planet orbiting the sun's closest neighbor.

Discovered only a week ago, comet 3I/ATLAS is only the third known visitor from outside the solar system. U of A astronomer Carson Fuls explains what makes the comet special – and why we can only guess where it came from.