2022 - 9

potm2209a.jpg

This image from the NASA/ESA/CSA James Webb Space Telescope shows IC 5332, a spiral galaxy, in unprecedented detail thanks to observations from the Mid-InfraRed Instrument (MIRI). Its symmetrical spiral arms, which appear so clearly in Hubble’s ultraviolet and visible-light image of IC 5332, are revealed as a complex web of gas, emitting infrared light at a variety of temperatures. Capturing light at these wavelengths requires very specialised instruments kept at very cold temperatures, and MIRI performs spectacularly at the task.

from https://esawebb.org/images/comparisons/potm2209a/

Tycho Crater is an one of the most prominent craters on the moon. It appears as a bright spot in the southern highlands with rays of bright material that stretch across much of the nearside. Its prominence is not due to its size: at 85 km in diameter, it’s just one among thousands of this size or larger. What really makes Tycho stand out is its relative youth. It formed recently enough that its beautiful rays, material ejected during the impact event, are still visible as bright streaks. All craters start out looking like this after they form, but their rays gradually fade away as they sit on the surface, exposed to the space environment which over time darkens them until they fade into the background. ~ Source – www.nasa.gov

astrophotography-tycho-crater.jpg