If there is intelligent life out there, it might be broadcasting signals across the universe. Scientists listening out for broadcasts by extra-terrestrials are struggling to get the computer hardware they need, thanks to the crypto-currency mining craze, a radio-astronomer has said.
SETI (Search for Extraterrestrial Intelligence) researchers want to expand operations at two observatories. However, it has found that key computer chips are in short supply. "We'd like to use the latest GPUs [graphics processing units]... and we can't get 'em," said Dan Werthimer, Chief Scientist, SETI at the University of California, Berkeley.
Demand for GPUs has soared recently thanks to crypto-currency mining. "That's limiting our search for extra-terrestrials, to try to answer the question, 'Are we alone? Is there anybody out there?'," Dr Werthimer told the BBC. "This is a new problem, it's only happened on orders we've been trying to make in the last couple of months."
Mining a currency such as Bitcoin or Ethereum involves connecting computers to a global network and using them to solve complex mathematical puzzles. This forms part of the process of validating transactions made by people who use the currency. As a reward for this work, the miners receive a small crypto-currency ...