Nerves run high ahead of the James Webb Space Telescope launch this Saturday

The primary mirror of the James Webb Space Telescope. In a new interview, NASA Administrator Bill Nelson shared he is “nervous” ahead of the launch. (Image credit: NASA/Chris Gunn)

Amid all the excitement, there is no shortage of nerves ahead of the launch of the world’s most powerful telescope. 

This Saturday (Dec. 25), the James Webb Space Telescope will blast off from Earth on a 1-million-mile (1.5 million kilometers) journey to its ultimate destination, where it will make groundbreaking new observations of the early universe. But with such ambitious science goals, more than 25 years of work and $10 billion spent, a lot is riding on the success of this telescope.