AXIS is a plan for a NASAX-raysurvey satellite,
aiming to image the celestial sphere
on the order of 0.5 arcsecondangular resolution, covering roughly
0.1-16 keV (soft into mid X-rays),
generally more sensitive than Chandra X-ray Observatory.
The plan is for an early-2030s launch.
In October 2024, NASA selected AXIS from a number of Explorer
proposals for study,
with the expectation of deciding in 2026 whether to proceed with
construction for a 2032 launch.