00:00Black holes are still one of our universe's greatest mysteries.
00:07Massive distant bodies capable of gobbling up anything and everything that crosses their
00:11event horizons.
00:12However, experts now say they're not all distant, and they're not all massive, and tiny ones
00:17could float through our solar system and cause observable effects.
00:21Experts say that primordial black holes, or PBHs, were formed mere moments after the Big
00:25Bang.
00:26These black holes were formed without nearly as much matter as later ones, as there simply
00:30wasn't enough stuff to collapse into a normal black hole.
00:33However, they could still do so because the conditions in the initial moments after the
00:36Big Bang were much different than today, as space as we know it was expanding and near
00:40the speed of light.
00:41Astronomers have long believed that these black holes, which are around the mass of
00:44a giant asteroid and the size of an atom, could wander around the universe.
00:49And experts have just calculated that we are likely visited by one of them around every
00:52ten years.
00:53They also found that if one of them comes within just 280 million miles of Mars, we
00:58could be able to detect that, as it would effectively cause Mars to wobble on its axis.
01:03That shift would equate to around 3.3 feet of Martian movement over ten years.
01:07But that's measurable.
01:08Experts add that as a PBH rips through our solar system at nearly 450,000 miles per hour,
01:13it could also affect the trajectories of asteroids and other cosmic objects as well.
01:23NASA Jet Propulsion Laboratory, California Institute of Technology
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