Travelling up from Mars’s equator towards its north pole, we find Coloe Fossae: a set of intriguing scratches within a region marked by deep valleys, speckled craters, and signs of an ancient ice age.
In 2023, gravitational wave detectors picked up the signature of a collision 7 billion light years away. Two black holes had merged in an explosion of warped space-time, but when astronomers analysed the data, they found something that violated the rules of physics. The black holes were spinning faster than any previously observed and fell within a mass range where black holes simply aren't supposed to exist.

