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As researchers learn more and more about the planet Mars, the likelihood of life having developed on the Red Planet increases. Two separate discoveries, one involving the discovery of what may be planet Earth’s oldest fossils, and another that shows that Mars may have had more water on its surface than anticipated, reinforce the idea of life having once thrived on the Martian surface.
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An experiment that was conducted aboard — or rather outside of — the International Space Station, proves that biological organisms can survive the harsh environment of space for extended periods of time. The experiment was designed investigate how human expeditions to Mars could one day sustain themselves, and how the biology of extremophiles — organisms that thrive in conditions that would be deadly to other creatures here on Earth — would fare in the harshness of space. The success of the experiment not only provided surprisingly positive results, it also offers new evidence that life on Earth may have originated from elsewhere in the cosmos.
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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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