Spacetime With Stuart Gary

Sponsor Link:This episode of Spacetime is brought to you with the support of Squarespace...when it's time to get online, it's time to visit Squarespace. Free trial. To find out more visit squarespace.com/spacetime SpaceTime with Stuart Gary Gary - Series 29 Episode 23In this episode of SpaceTime, we investigate the discovery of a nearly invisible galaxy dominated by dark matter, the latest delays in the Artemis 2 mission to the Moon, and the anticipated launch of Australia's new hypersonic scramjet.A Dark Matter Galaxy UnveiledAstronomers have identified an almost invisible galaxy, catalogued as CDG2, located in the Perseus galaxy cluster approximately 300 million light years away. This galaxy is believed to be composed of about 99% dark matter, making it one of the most dark matter-dominated galaxies ever detected. The findings, published in Astrophysical Research Letters, reveal that dark matter constitutes roughly 80% of the universe's total matter, and CDG2's faint presence was confirmed through observati