Sh 2-305 Wall Art including Frame Frame Colors:Walnut and be the first mission

and be the first mission to collect and cache Martian rock and regolith (broken rock and dust)

Image Credit: NASA/JPL-Caltech

Radiation from stars within the nebula heats up the surrounding gases

Levay and R

This image from 1991 shows Earth's Moon

Sh 2-305 Wall Art including Frame Frame Colors:Walnut and be the first missionThis gently glowing area of sky is actually a hot bubble of hydrogen gas named Sh 2 305 that has been bombarded by intense radiation from nearby stars. Such gas clouds are known as emission nebulae, or HII regions (pronounced H two). The radiation in question is in the ultraviolet part of the spectrum and is thought to emanate from at least two O type stars, and likely several others. This stellar class is the brightest and hottest that we know of