So the privatization of the space industry is vital and reusable rocket technologies are obviously an inevitable part of the sustainability of space access as a business.
Depending on how much of a nerd you are you may be aware that several private companies have been experimenting with vertical landings for years. Several successful tests have been made with vertical liftoff/landing but this one is different.
This rocket was not a low altitude test - it put 11 satellites into orbit AND landed (the first stage) vertically - it didn't just go straight up and down - it boosted the second stage to around 5000 kph, turned around and landed safely - wow!
Now this video was a live feed from Space X and it's actually quite moving! The emotion is contagious! This was an incredible achievement!
If you're VERY nerdy you'll enjoy the whole 45 minutes - if you're just Nerd-curious you'll want to watch from lift-off at around 22:00 to landing at around 33:00 - the actual mission was to launch the satellites which happens later in the film but the really big news was the landing of that first stage - VERY EXCITING! (and they end with a Star Wars pun - beautiful!)