Archives for category: Aliens

Fermi’s paradox, Fermi’s question, the Great Silence, and Silentium Universi are all names ascribed to one of the most fundamental questions of astronomy: “Where is everybody?” It is a question based in rationality, because in the search for extraterrestrial life the numbers just don’t seem to add up. With enough probes and some decent rocket technology, it is theorized that the Milky Way Galaxy could be explored in at least 4 million years. Sure, 4 million years seems like a long time for our young and galactically dinky civilization, but our galaxy is more than 10 billion years old and technological advancement is an exponential phenomenon.

Scientists have considered a variety of possible explanations for the paradox of Silentium Universi. The first of these solutions is that aliens are here. They came and left leaving evidence behind, or they are us and humans are actual descendants of ancient alien civilizations, or aliens are actually keeping us in a well designed zoo of sorts. The second solution is that aliens exist but we have not yet communicated. It is possible that we do not know how to communicate properly, that it is only a matter of time before we do communicate, that we are being purposely avoided, or that civilizations simply do not last long enough to ably cross-communicate. The third solution is more pessimistic, and theorizes that life simply does not exist elsewhere, or that the genesis of life is extremely rare. It is difficult to conclusively say which solution is most likely, as we have little understanding of the processes that develop intelligent life.


The search for extrasolar planets and potential for alien life is one of the hottest topics in modern science. As such, I thought it would be interesting to discuss the place that some scientists say is most likely to alien host life.

Enceladus seems to be at the top of everyone’s list for alien host planets. This small moon of Saturn is called the most promising bet for life for several reasons. Its surface is icy, but scientists believe there may be water beneath the surface ice. Also, the moon seems to have a boiling core of molten rock, helping to heat the moon to warmer temperatures that can help give rise to life. The most attractive characteristic of Enceladus is the geysers of frozen water spewing from its southern hemisphere. If there is life on Enceladus, these geysers may be continuously gushing life into space, making it easier for scientists to grab potential samples.