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The successor to the Hubble telescope, the $10 billion and counting James Webb Space Telescope, is designed to uncover the secrets of the universe when it is launched in 2021. It's the latest estimate for the world's most powerful space telescope that was initially due to be launched back in 2011.
Pictures captured by Nasa's Hubble telescope. Photo: NASA
Whenever it happens, Dr Megan Donahue can't wait - she is an American astronomer who studies galaxies and galaxy clusters, is a professor of physics and astrophysics at Michigan State University, and the president of the American Astronomical Society for the 2018-2020 term. She is fascinated by black holes, the gas that lurks around galaxies, and the lessons learned about galaxies by studying how they cluster.