Trump sending Americans back to the Moon
President Trump directed NASA to send Americans to the Moon in order to prepare for future trips to Mars
Bezos is selling $1 billion of Amazon stock a year to fund rocket venture
Development costs for that system, known as New Glenn, will be about $2.5 billion
SpaceX launches its first recycled rocket in historic leap
Boosters — the most expensive part of the rocket, according to Musk — typically are discarded following liftoff