## The Rate of Starbirth is Crashing in the "Modern" Universe The Universe has been making fewer stars lately, and astronomers want to know why. The obvious answer is: there hasn't been enough star-birth material. Is that true? If so, what other process is at play that's slowing it down? An international team led by researcher Hong Guo of the Chinese Academy of Sciences decided to dig into the reasons why it looks like starbirth is falling off. The team used the Five-hundred-meter Aperture Spherical radio Telescope (FAST) to make high-precision measurements of cosmic neutral hydrogen (HI)…