One of the Milky Way's smallest galactic neighbours seems to have a supermassive black hole at its centre, upending assumptions that it was dominated by dark matter A nearby galaxy once thought to be dominated by dark matter seems to have a surprise supermassive black hole at its centre. Segue 1 is barely a galaxy, with only about 1000 stars compared to the Milky Way's hundreds of billions, and yet it appears to be home to a black hole about 10 times as massive as all its stars combined. Segue 1 and other similar dwarf galaxies do not have enough stars to provide the gravity needed to hold them all together. To solve that problem, physicists have long assumed they were chock-full of the mysterious substance called dark matter, which we can't see but that could generate the extra gravity. So when Nathaniel Lujan at the University of Texas at San Antonio and his colleagues began testing computer models of Segue 1, they expected the best-fitting model would be one dominated by dark matter.

What does it mean to play a video game as an ensemble rather than a single character? How would it change your experience of people and plot? What if there was no single hero, or perhaps no heroes at all? As Hannah Nicklin, a creative director at independent studio Die Gute Fabrik explains, these are questions that narrative adventure Saltsea Chronicles is attempting to answer, all while telling its own charming story of misfit sailors voyaging across a flooded archipelago to uncover a conspiracy. It's a lofty pitch, and one Nicklin brings back down to earth with a comparison: "Star Trek: The Next Generation without the manifest destiny" – a description that hints at the game's politics and its structure.