I visited the Australian National University's (ANU) Acton Campus and the Research School of Astronomy & Astrophysics at Mount Stromlo where he has studied and worked for some 3 years now.

It's a half-an-hour drive from Acton to Mount Stromlo. He explained to me his work in a taxi. Apparently, it's about the epoch of reionisation and the beginning of our Universe or at least something like that. Impenetrable to someone whose understanding of physics has forever stayed in the 19th century since high school.

At the time, the Orion spacecraft was on its way to the moon, and a Mission Operations Centre (that is the blue container truck in Picture 2) was set up next to the ANU Quantum Optical Ground Station (QOGS) to test its advanced laser communications technology and support NASA's Artemis 2 mission. This small shed with a laser pointer in the southern hemisphere helped the mission transmit more data much quicker than in the 1960s.