| CNN.com delivers up-to-the-minute news and information on the latest top stories, weather, entertainment, politics and more. | 'Planet Nine' at solar system's edge? | | Even with an entire universe to explore, our own solar system is still full of mysteries. Welcome the newest members of our space family, found only recently in the "no man's land" beyond Neptune. |
| What aliens just wouldn't get about the human race | | Could we have finally made contact with a far-away alien civilization? Probably not, but astronomers engaged in the search for extraterrestrial intelligence (SETI) have picked up a "strong" signal about 64 light years away. Best-case sci-fi scenario, the signal is from an advanced extraterrestrial race. Worst case, it's just an anomaly. |
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