NASA’s SPHEREx observatory is now in space for a two year year mission to create a 3D map of the entire celestial sky. The telescope left the ground on top of a Falcon 9 rocket from a launch pad in California, four years after NASA announced that a SpaceX flight will launch the mission, along with NASA’s PUNCH (Polarimeter to Unify the Corona and Heliosphere) microsatellites. SPHEREx separated from SpaceX’s vehicle at 12AM Eastern time on March 12 and will remain in low Earth orbit, where it will maintain a position relative to the sun that will remain the same throughout the year.
Every 98-minute orbit the observatory makes will allow it to view a 360-degree strip of the sky in both optical as well as near-infrared light. The telescope can capture more 360-degree strips as the Earth moves around the sun, enabling it to map the entire celestial sky within six months. SPHEREx was…
