What is the name of NASA's space telescope that may embark on a journey in fall 2026 to study exoplanets, the Milky Way, and dark energy?

NASA's upcoming observatory, poised to launch as early as fall 2026, is named the Nancy Grace Roman Space Telescope (Deals). This powerful infrared telescope is dedicated to unraveling some of the universe's greatest mysteries, including the nature of dark energy, the evolution of the Milky Way, and the discovery of exoplanets. The telescope is named in honor of Dr. Nancy Grace Roman, NASA's first chief astronomer, often referred to as the "Mother of the Hubble Space Telescope" for her pivotal role in its development.

The Roman Space Telescope boasts a primary mirror the same size as Hubble's, but its Wide Field Instrument provides a panoramic view 100 to 200 times larger than Hubble's infrared camera, allowing it to survey vast areas of the sky much more efficiently. This expansive field of view will enable the telescope to conduct a comprehensive census of exoplanets using a technique called gravitational microlensing, which can detect worlds down to a few times the mass of the Moon, including potentially free-floating planets. It is expected to discover approximately 2,500 new planets, some of which could be rocky planets in habitable zones.

Beyond exoplanets, the Roman Space Telescope will delve into the enigmatic forces of dark energy and dark matter, which constitute the majority of the universe's mass and energy but remain poorly understood. By observing billions of galaxies and detailing cosmic phenomena like supernovae, the mission aims to shed light on the universe's expansion history and the growth of cosmic structure. Its Coronagraph Instrument will also demonstrate advanced technology for directly imaging exoplanets by blocking out the glare of their host stars. The Roman Space Telescope's ambitious science program builds upon the legacies of its predecessors, promising to revolutionize our understanding of the cosmos.