The launch created an extremely rare, perfectly circular shock wave.
Unusually for SpaceX, the company is not trying to recapture and reuse this Falcon 9 rocket.
SpaceX will try and salvage the rocket from its watery grave.
Experts weigh in on the mystery.
The secret craft could have plunged back through the atmosphere.
Even Elon Musk hasn't revealed the restricted Zuma contents.
Keep your eyes on the road.
A timeline of the company’s attempts to launch a rocket and land it back on Earth intact.
"As those of us in the community know, space exploration is hard," writes John “Danny” Olivas.