Tor launches anti-censorship Messenger service
A new chat tool has been launched in an effort to improve the security of online messaging.
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Will tidal and wave energy ever live up to their potential?
As solar and wind power grow, another renewable energy source with vast potential — the power of tides and waves — continues to lag far behind.
What is behind a spike in Australian shark attacks?
The number of shark attacks in New South Wales have been particularly high this year, even though estimated shark numbers are at record lows.
