NASA Mars rover engineers in California experience earthquake minutes before launch

NASA engineers working on the 'Perseverance' Mars rover launch from Jet Propulsion Laboratory in California experienced a 4.2-magnitude earthquake minutes before the launch on Thursday. However, it didn't affect the launch that took place on the other side of the coast of the US, in Florida. "Things are rattling there, so we're 'persevering' a lot," a person live-reporting NASA's launch joked.