The earliest evidence of the first stars may lie in a distant gas clump
James Webb data reveal pristine gas irradiated by energetic light some 450 million years after the Big Bang — a sign it may house primordial
Author: Mara Johnson-Groh
A new measurement reveals gravity is still hard to pin down
After a 10-year effort, physicists got a value for “Big G” that does not settle the debate over one of nature’s hardest numbers to nail