The universe is a strange place — filled with exploding stars, ancient galaxies, and unseen worlds. Now, astronomers are about to get a brand new tool to explore it.
The $4.3-billion Nancy Grace Roman Space Telescope is scheduled for launch Aug. 30. Named for NASA's first chief astronomer, the observatory is expected to reveal new information about the expansion of the universe and discover multitudes of planets orbiting distant stars.
Roman, as it is known to its friends, has an unusual history. About 15 years ago NASA was making plans to build a space telescope that could, among other things, search for exploding stars known as Type 1A supernovas. These supernovas were used as a kind of cosmological measuring stick to uncover a mysterious force called dark energy that was causing the universe to expand — a discovery that earned the Nobel Prize in 2011.
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