The four white spires that surround Juno’s launch pad are lightning towers, protecting the spacecraft from lightning strikes.
Launching Juno into space takes everything we know.
The Atlas V 551 rocket has a certain mass limit, and the margin for error is slim.
Check out the key stages of the launch.
Is Juno prepared for the journey ahead? Pre-launch tests trick the spacecraft into thinking it’s in space.
Juno has to launch within a tight window in time to reach Jupiter on schedule.