The observable universe is a ball-shaped region of the universe comprising all matter that can be observed from Earth or its space-based telescopes and exploratory probes at the present time, because ...

SPHEREx is slated to launch Feb. 27 on a SpaceX rocket. It is meant to map the entire night sky in infrared — something even ...

The observable universe—the part of space we can ... As you gaze into the night sky, consider that each star, galaxy, and empty stretch of space is a reminder of our shared journey to understand ...