Amongst the multitude of mysteries that the universe holds, the answers to what might be the most elusive ones are whether or not is finite or infinite, both in terms of its physical breadth, but also its age: is there a beginning and an end? And for that matter, if it is finite in its physical dimensions, are there other universes that are adjacent to our own? As Einstein famously put it, "Only two things are infinite, the universe and human stupidity, and I’m not sure about the former."

However, Einstein’s tongue-in-cheek quip about the universe have been addressed by two new studies that offer new insight into both the possible physical dimensions of the universe, and the possibility that it may indeed be ageless.
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We’re all familiar with the concept of early spaceflight experiments that sent animals into space, including fruit flies, various rodents, all the way up through the quintessential space-monkey. These high-flying menageries were sent aloft to study the effects of travel into space on biological organisms, as no-one at the time knew what would happen to a human being if they were sent to that high an altitude.
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A recent study has added new evidence to the controversial theory that the three-dimensional nature of our universe is actually a holographic projection from a two-dimensional plane. The holographic principle, as it is known, isn’t widely accepted by the scientific community, as it upends the classical model of physics. However, where the classical model has failed to reconcile quantum mechanics with the macroscopic world, the holographic principle does a much better job of doing so, and this latest study has also offered a real-world demonstration that the principle may be valid.
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Another asteroid made a close pass to the Earth, on January 24, at 11:54 EDT (5:54 UTC), the second one to do so in as many weeks. Asteroid 2017 BX’s close pass — just within the Moon’s orbit — follows asteroid 2017 AG13’s January 9 flyby by a mere 15 days. While this new asteroid missed us as well, and wouldn’t cause much damage if it were to actually to have hit us, it does set up a disturbing trend, as both 2017 BX and 2017 AG13 weren’t discovered until mere days before their closest approaches.
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