Collisions among planets and between ... maybe one a bit more massive, say 2500 to 3000 stars rather than 1500. The Orion Trapezium cluster, discovered in 1617 by Galileo Galilei, is composed ...

Researchers have synthesized five new isotopes that could help bring the stars down to Earth — and coax scientists a step closer to understanding how collisions between ultra-dense, dead stars ...