Did you hear North Korea put something in orbit?
North Korea launched a successful three-stage rocket, which successfully placed an object into orbit. According to the North Korean news service, this object is a weather satellite, though this does not have any foreign confirmation.
Standard Q & A:
Q: Why do we care that North Korea put something into orbit?
A: The rockets that put things into orbit are the same ones that make for ICBMs (Inter-continental ballistic missiles), the sort of missile technology that made the USSR and USA very wary of one another. A rocket that achieves orbit is the same kind that can nuke someone across the globe.
Q: So what, that rocket just put something into orbit.
A: That item in orbit can be controlled to enter the atmosphere and drop a payload (i.e. ballistic attack) anywhere on the globe, though a more standard method is just a regular boring ballistic trajectory, hence the 'B' above. This can hit the US's West Coast that way.