Summary:
- The Roman Space Telescope is a powerful new observatory that will study the mysterious dark energy that is driving the expansion of the universe.
- One of the key techniques the telescope will use is called "weak lensing," which involves measuring the subtle distortions in the shapes of distant galaxies caused by the bending of their light as it passes through the gravitational fields of intervening matter.
- By mapping these distortions, scientists can create detailed 3D maps of the distribution of matter in the universe, which will provide crucial clues about the nature of dark energy and how it is shaping the cosmos.