Tag

Molecular Hydrogen

All articles tagged with #molecular hydrogen

JWST Data Reveals Planet Formation as a Race Against Protoplanetary Disk Decay
astronomy1 month ago

JWST Data Reveals Planet Formation as a Race Against Protoplanetary Disk Decay

Astronomers used the James Webb Space Telescope to analyze 72 young, sun-like stars, revealing that planet formation is a time-sensitive process dictated by the rapid loss of material from protoplanetary disks. By tracking molecular hydrogen, the study shows that gas giants must assemble their atmospheres before stellar winds and radiation strip the disk of its raw ingredients.

Scientists Discover Ancient Stars Still Burning After 13.8 Billion Years
science1 year ago

Scientists Discover Ancient Stars Still Burning After 13.8 Billion Years

Recent research suggests that the universe's first stars were more diverse in mass than previously thought, with new findings indicating the formation of lower-mass stars due to the presence of molecular coolants like helium hydride and turbulence in gas clouds, challenging the long-held belief that only massive stars existed in the early cosmos.