WASHINGTON, United States — The SpaceX crew that will ferry back in February two astronauts stranded on the International Space Station docked with the orbiting laboratory on Sunday, a live stream of the mission showed. The Falcon 9

Do you remember playing with a magnifying glass as a kid? You hold the tool at a specific angle over a dried leaf until it concentrates sunlight into a dot. The focused light applies more heat to the dried leaf, burning a hole through it. Article co