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Aliens should be common, yet there is no convincing evidence that they exist. Here are twelve possible reasons why this is so. 1. There aren't any aliens to find. As unlikely as it seems in...
Do aliens exist? Extraterrestrial life has never been discovered, but that doesn’t mean it doesn’t exist. At NASA, astrobiologists like Lindsay Hays are trying to answer one of the most profound questions ever: Is there life beyond Earth?
Aliens should be common, yet there is no convincing evidence that they exist. Here are twelve possible reasons why this is so. 1. There aren't any aliens to find. As unlikely as it seems in a galaxy with hundreds of billions of stars and as many as 40 billion Earth-size planets in habitable zones, we could be alone. 2.
The absence of evidence for aliens could be because they don’t exist or because our sampling depth is inadequate to detect them—a bit like declaring the entire ocean free of fish when none ...
5 experts. Even if aliens exist, are intelligent like humans and interested in making contact with us, what are the chances they’ll be close enough for us to hear them screaming their presence...
Do aliens exist? It’s a question that has spawned countless films and TV series, books, podcasts, artwork and conspiracy theories, but the question of whether or not we are truly alone in the...
Relatively soon, some prominent astrobiologists say, we will most likely have either found compelling evidence for extraterrestrial life or banished its possible existence to the ever shrinking...
