Europe and NASA's Solar Orbiter rocketed into space Sunday night on an unprecedented mission to capture the first pictures of the sun's elusive poles.
"We're on the way to the sun. Go Solar Orbiter!" said Cesar Garcia Marirrodriga, project manager for the European Space Agency. "It's a fantastic moment ... it's like, well, we're unstoppable."
The $1.5 billion spacecraft will join NASA's Parker Solar Probe, launched 1 1/2 years ago, in coming perilously close to the sun to unveil its secrets.
