Oxford University Press's
Academic Insights for the Thinking World

  • Author: indranil banik


The enduring mystery of how galaxies grow up

Astronomers have discovered that there are two different types of galaxies in the Universe: elliptical galaxies and spiral galaxies. Elliptical galaxies are dead galaxies full of very old, red stars that move on chaotic random orbits around the centre of their galaxy in such a way that makes their shape look like fluffy footballs. On […]

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Modified gravity in plane sight

Our Galaxy—the Milky Way—is a vast rotating disk containing billions of stars along with huge amounts of gas and dust. Its diameter is around 100,000 light years.

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