James Webb Space Telescope

 The concept for the telescope was first imagined as a successor to Hubble at a workshop in 1989, and construction on Webb first began in 2004. Since then, thousands of scientists, technicians and engineers from 14 countries have spent 40 million hours building the telescope.

Now, Webb could help researchers understand the origins of the universe and begin to answer key questions about our existence, such as where we came from and if we're alone in the cosmos.