NASA Is Launching a $4 Billion Space Telescope on Sunday. Here's Why You Should Care

Key Points:

• NASA's Nancy Grace Roman Space Telescope is set to launch on Sunday at 7:26 a.m. ET aboard a SpaceX Falcon Heavy rocket, aiming to capture wide-field infrared images of the cosmos and survey millions of galaxies.
• Equipped with a 300-megapixel Wide Field Instrument and a Coronagraph Instrument, Roman offers a field of view 100 times larger than Hubble's, enabling detailed studies of dark matter, dark energy, and exoplanets.
• Positioned at the Sun-Earth Lagrange point L2, the telescope will map dark matter distribution via weak gravitational lensing, measure the universe’s expansion rate through supernova observations, and investigate galaxy clustering over time.
• Roman will monitor 100 million stars to detect approximately 2,500 exoplanets using microlensing, including planets smaller than Mars and those orbiting at various distances from their stars, while its coronagraph will directly image some exoplanets by blocking starlight.
• The $4 billion observatory is designed to generate vast amounts of data to address fundamental astrophysical mysteries, including the nature of dark matter, dark energy, and the evolution of the universe.