Looking sharp: duo help fix billion-dollar telescope

A software tweak by two Sydney students helped fix a blurring issue with the James Webb telescope. (PR IMAGE PHOTO)

Two Sydney university students have helped fix the world's most powerful space telescope - and have the matching tattoos to prove it.

Louis Desdoigts and Max Charles, both University of Sydney students, helped deliver a software tweak to the $15 billion James Webb Space Telescope to fix a blurring issue without the need for a trip to space.