Today I found out about space “rubies”. 🚀

In 2022 the James Webb Space Telescope discovered some tiny red specs, labelled little red dots or rubies. They are thought to black holes surrounded by a dense shell of gas.

Nature Article

Image: MPIA/HdA/T. Müller/A. de Graaff (CC-BY-4.0)

An artist’s impression of a black hole star, the explanation favoured by many astronomers for the little red dots.Credit: MPIA/HdA/T. Müller/A. de Graaff (CC-BY-4.0)