Aliens: Are We Searching in All the Wrong Places?

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Are We Searching for Aliens in the Wrong Place?         Earth may be a nice place for life as we know it to evolve, but is it really the best place for life to thrive? Probably not. Read More WATCH VIDEO: Curiosity and the Hunt for Life on Mars Could life have existed on Mars even before it flourished on Earth? Why Heroin Is Becoming Deadlier         When actor Philip Seymour Hoffman was discovered dead of an overdose, it underscored the new dangers of heroin. Read More WATCH VIDEO: How Drugs Pollute Our Drinking Water Our water is teeming with all kinds of drugs. What's this doing to our bodies? The Ancient Meandering Rivers of Mars         Formerly flowing rivers have been spotted on the Martian surface, an eerie reminder of Mars' wet past. Read More WATCH VIDEO: Mars Meteorite Reveals Secrets A piece of rock found its way all the way from Mars to a desert in northwest Africa. The Mexican Water Monster Is Going Extinct! Video         The axolotl's cuteness got it into games like Pokemon and Animal Crossing. But this amphibian has been disappearing from its habitat over the past decade. Watch Follow Discovery News on Facebook! Get your sci-tech headlines all day on Twitter too! Follow us @Discovery_News. At Discovery we value your privacy. If you would like to be removed from Discovery News emails like this, please click here to our subscription center, where you can manage your account. We recently updated our privacy policy. This policy is effective as of 10/30/07. To see new policy click here . Discovery Communications, LLC One Discovery Place Silver Spring, MD 20910 © 2013 Discovery Communications, LLC