1 month ago
HT Tech
Observations by NASA's James Webb Space Telescope are upending the understanding of the early universe, indicating the presence of large and mature but remarkably compact galaxies teeming with stars far sooner than scientists had considered possible. "The leading theory is that an ocean of dark matter filled the early universe after the Big Bang," Labbe said. "This dark matter - we don't know what it is actually is - started out really smooth, with only the tiniest of ripples. These ripples grew over time due to gravity and eventually the dark matter started to collect in concentrated clumps, dragging hydrogen gas along for the ride. "Their explosion set off the chain of events that formed subsequent generations of stars," Labbe said.
Continue reading...
