New NASA telescope to probe dark energy, dark matter and exoplanets

NASA is preparing to launch its next flagship space observatory, the Nancy Grace Roman Space Telescope, slated for a $4 billion project. The launch, occurring nine months ahead of schedule, is planned for Sunday at NASA's Kennedy Space Center in Florida using a SpaceX Falcon Heavy rocket. Named after NASA's first chief astronomer, Roman follows in the footsteps of the Hubble Space Telescope and the James Webb Space Telescope, with enhanced capabilities to delve deeper into the universe's mysteries.

The telescope boasts a broad panoramic view of space and rapid survey speeds, enabling scientists to study the cosmos with unprecedented precision. Roman will primarily focus on dark energy and dark matter, testing gravity on vast scales, and hunting for exoplanets beyond our solar system. Its main survey will span over a year, capturing more than two billion galaxies, providing insights into the universe's growth and evolution, and the expansion since the Big Bang 13.8 billion years ago.

Scientists are eager to understand whether dark energy is constant or evolving, and to determine if modifications to Einstein's theory of general relativity are necessary. Roman's mission is set for five years, with potential additional fuel for further research.