Enlarge / A quasar ejects a jet of material into intergalactic space.J. A. Biretta et al., Hubble Heritage Team
On Earth, recycling signs are everywhere, urging us to save our planet while we still can. In space, some galaxies apparently recycle without any signs to remind them.
At least one galaxy isn’t letting materials that could form potential stars go to waste. An international team of scientists led by astronomers Shiwu Zhang and Zheng Cai of Tsinghua University in China has found evidence that an enormous galaxy within an even larger nebula called MAMMOTH-1 is drawing in material from its
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