From the beginning of the universe to now, here are five big questions astronomers are hoping the James Webb Space Telescope will solve.
Nobel laureate John Mather of NASA's Goddard Space Flight Center is now leading another project that promises to tell us what happened in the next chapter of the early universe.the biggest, most powerful space telescope to ever be builtIt promises to peer back in time and space to see the very first stars and galaxies that formed from hot, dense clumps of gas and dust.
"The prediction is that first stars were hundreds of times as massive as the Sun, and they would burn out in a few million years and either blow up as supernovae, or collapse into black holes, or maybe both.""We are missing the very first part of the puzzle," says Amber Straughn, an astrophysicist at the Goddard Space Flight Centre and deputy project scientist on the JWST.
These galaxies were captured by the Hubble Space Telescope in a famous image called the Ultra Deep Field, which took two weeks to create. "We will be able to see much closer to the Big Bang with the Webb telescope, maybe within 100 million years," Dr Mather says.Why are there supermassive black holes at the centre of galaxies?Lurking at the centre of every galaxy, is a supermassive black hole, millions to billions times the mass of our Sun.
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