The TRAPPIST-1 system may have formed pebble-by-pebble
Chris Ornell, lead author of the paper recently accepted to the journal Astronomy and Astrophysics, said in a press release, “We have been working on pebble aggregation and sweep-up by planets for a long time and were also developing a new ice-line ...
Astronomers explain the formation of seven exoplanets around Trappist-1
OU astrophysicist identifies composition of earth-size planets in TRAPPIST-1 system
How Did Alien Solar System Form? Trappist-1 Planet Pieces Melted Together At Ice-Water Zone