NASA finds there are fewer galaxies than first thought, leaving the possibility we're alone in the universe
A mission from NASA has discovered there may be a lot fewer galaxies than initially believed, opening up the possibility humanity is alone in the universe.
The New Horizons mission, which yielded the first close-up photos of Pluto, provided enough data for scientists to make the determination that it's likely the number of galaxies is in the hundreds of billions, rather than 2 trillion, as initially believed.
"It's an important number to know — how many galaxies are there?" the study's lead author, Marc Postman, said in a statement. "We simply don't see the light from 2 trillion galaxies."
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