There isn’t a strong correlation between gas giant and host star compositions when it comes to elements heavier than hydrogen and helium, according to new research. This illustration shows a gas giant exoplanet orbiting its parent star. Image credit: NASA / ESA / STScI / L. Calcada. In their youths, stars are surrounded by a protoplanetary disk — a rotating disk of gas and dust from which planets are born. Astronomers have long wondered how...
