NASA Finds there are Fewer Galaxies than Initially Thought
NASA has made an important discovery in its quest to learn more about the universe. Well, more of an un-discovery, actually. Photos sent to Earth from the New Horizons spacecraft have led NASA scientists to determine there are likely hundreds of billions of galaxies in the universe — not 2 trillion, as they’ve believed for years.
“It’s an important number to know — how many galaxies are there?” says Marc Postman, the study’s lead author. “We simply don’t see the light from 2 trillion galaxies.”
The original number came from data collected from the Hubble telescope, which can’t see into the darker regions of space, Postman says. The New Horizons spacecraft, however, is currently near the edge of the Solar System, giving it a view of space 10 times darker than the Hubble can see, he says.