They only observed an area of sky approximately the size of "three full moons" > By using the data from the James Webb Space Telescope’s 6.5‑meter (21-ft) mirr

They only observed an area of sky approximately the size of "three full moons" > By using the data from the James Webb Space Telescope’s 6.5‑meter (21-ft) mirror, scientists at UC Santa Barbara have surveyed 0.54 square degrees of sky, which is equivalent to the area of three full moons when viewed from Earth. Charting nearly 800,000 galaxies, the COSMOS-Web dataset covers almost 98% of cosmic history.