What is meant by a primordial black hole? Primordial black holes (also abbreviated as PBH) are hypothetical black holes that formed soon after the Big Bang. What happens if a primordial black hole hit Earth? The possibility that a black hole...
What would happen if a primordial black hole passed through Earth? During its passage through Earth, the black hole would accrete matter, and that accretion would generate heat (the same heat that powers active galactic nuclei). The impact of an asteroid-mass...
How big would a primordial black hole be? “You would start with a pretty massive primordial black hole in the early universe, perhaps 10,000 solar masses,” and then this black hole would quickly grow to millions or billions of solar masses...
What is the difference between a black hole and a primordial black hole? A regular black hole (of about 3 solar masses) cannot lose all of its mass within the current age of the universe (they would take about 1069 years...
How many black holes are in the solar system? Judging from the number of stars large enough to produce such black holes, however, scientists estimate that there are as many as ten million to a billion such black holes in the...
Has Planet 9 ever been found? The ability of these past sky surveys to detect Planet Nine was dependent on its location and characteristics. Further surveys of the remaining regions are ongoing using NEOWISE and the 8-meter Subaru Telescope. Unless Planet...
How likely is Planet 9 to exist? The odds of this occurring has been estimated at a few percent. Had it not been flung into the Solar System’s farthest reaches, Planet Nine could have accreted more mass from the proto-planetary disk...
Has Planet 9 ever been found? The ability of these past sky surveys to detect Planet Nine was dependent on its location and characteristics. Further surveys of the remaining regions are ongoing using NEOWISE and the 8-meter Subaru Telescope. Unless Planet...
What would Planet 9 be called? Planet Nine – also referred to as Planet X – is a massive, hypothetical object in an elliptical orbit far beyond Pluto, roughly at a distance that would take 10,000 to 20,000 Earth years for...
Has Planet 9 been found yet? The ability of these past sky surveys to detect Planet Nine was dependent on its location and characteristics. Further surveys of the remaining regions are ongoing using NEOWISE and the 8-meter Subaru Telescope. Unless Planet...