The star PDS 70 is still in the process of planet formation, This image of the system taken by the Atacama Large Millimeter Array has attracted a lot of interest. It isn’t the large dust ring still undergoing planet formation that’s the main point of interest. It’s not the Jupiter-sized planet PDS 70c (just above 3 o’clock inside the ring) that’s already come together either. It’s the fuzzy dust cloud around that planet that intrigues astronomers. They believe it’s a region of moon formation. The planet may wind up with three of four large moons just like Jupiter’s.
This video simulates the first-ever detection of the aftermath of a planetary collision in another star system. The color-tinted Hubble image on the left is of a vast ring of icy debris encircling the star Fomalhaut, located 25 light-years away. The animated diagram on the right is a simulation of the expanding and fading cloud of the collision’s debris field. It’s based on Hubble observations taken over a period of several years.
Video Credit: NASA / ESA / A. Gáspár and G. Rieke (University of Arizona)