Earthrise - Apollo 17 Nebulae but scientists theorize that they

but scientists theorize that they may be either failed stars or planets ejected from very young systems after an encounter with another planet

" this spiral galaxy is unlike the textbook images of stately galaxies

The star cluster Pismis 24 lies in the core of the large emission nebula NGC 6357 that extends one degree on the sky in the direction of the Scorpius constellation

and over a relatively short span of time

Earthrise - Apollo 17 Nebulae but scientists theorize that theyView from Station 2, Boulder, and distant Earth taken during the second Extravehicular Activity EVA 2 of the Apollo 17 mission. BigBangPrints removed the black registration marks common in Apollo Mission photos and added a starry sky too. Amazing!