Alien Contact, AI Gets Smarter & More: 5 Things We Learned This Week

From aliens’ likely point of contact with humans to an app that can help alcoholics stay away from liquor, here are five things we learned in Tech & Science this week: We now have an estimate on when we can expect aliens to make contact: 1,500 years. Astronomers at Cornell University say TV and radio signals need that much time to reach half of all solar systems in order to be picked up by an intelligent lifeform. “It’s possible to hear any time at all, but it becomes likely we will have heard around 1,500 years from now. Until then, it is possible that we appear to be alone—even if we are not. But if we stop listening or looking, we may miss the signals. So we should keep looking,” says Evan…


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