We typically think of the Oort cloud as scattered ice balls floating far from the sun, yet still tied to it gravitationally.

“The image shows Messier 83’s well-defined spiral arms, filled with pink clouds of hydrogen gas where new stars are forming. “Interspersed amongst these pink regions are bright blue clusters ...

This NASA/ESA Hubble Space Telescope image features the spiral galaxy NGC 2566 ... and the exchange of gas between star-forming clouds and the stars themselves. Hubble regularly teams up with ...