Yang Huang

A new study based on precise Gaia measurements has reduced uncertainty: Andromeda is heading almost straight for us. In 6.5 billion years, the two galaxies will merge into a vast star system. The influence of satellites—the Magellanic Clouds and the Triangulum Galaxy—further nudges them together.

The stronger the scalar field around a black hole, the more distorted its shadow. New simulations reveal that at extreme values, the shadow fractures into crescent-shaped shards.