“I wouldn’t be surprised if Planet Nine has already been imaged in one of the large sky surveys currently underway, but, if not, it will be hard for it to hide from the Vera Rubin Observatory once it starts operations in a few years,” Caltech’s Michael Brown told The Daily Galaxy. Brown, along with Caltech’s Konstantin Batygin, presented the first evidence that there might be a giant planet tracing a bizarre, highly elongated orbit through the outer solar system in 2016.
Astronomers may soon be able to confirm the existence of a primordial black hole –gravity wells formed just moments after the Big Bang–in our Solar System with gravitational-wave experiments that will look back to a time before the formation of the first stars. “Ancient black holes would give us access to physics we would never otherwise be able to do,” wrote Dan Hooper, head of the theoretical astrophysics group at FermiLab, in an email to The Daily Galaxy. “If primordial black holes are real,’ he wrote, “they’d have potential to solve a whole host of the biggest problems in cosmology, not the least being the mystery of dark matter, considered to be the backbone to the structure of the universe.”
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