Summary:
- NASA's SPHEREx mission aims to map the entire sky and study the history of the universe by observing 450 million galaxies.
- The mission will use a specialized telescope to collect data on the early universe, including the formation of stars and planets.
- SPHEREx has faced several delays, but is now targeted for launch in 2025, where it will spend two years collecting data and providing insights into the origins of the universe.