Name the ultimate puzzler from fiction. If you didn’t say Sherlock Holmes, then I need to read what you’re reading. In many depictions, Holmes seems to care about nothing other than the puzzles his cases pose. Beyond the twisty plots and endearing characters, Arthur Conan Doyle’s stories and the subsequent screen…
The Perseverance rover is at risk of losing its ability to zap Martian rocks with lasers after one of its instruments began malfunctioning last month.