Hubble

• NASA is scheduled to launch the Nancy Grace Roman Space Telescope on August 30, 2026, using a SpaceX Falcon Heavy rocket. • The telescope features a mirror similar in size to Hubble's but possesses a field of view approximately 100 times wider, allowing it to map dark energy and search for exoplanets. • By monitoring roughly 200 million stars for gravitational microlensing, the mission aims to discover over 1,000 planets, specifically targeting cold, distant worlds that current detection methods often miss.

• The Hubble Space Telescope has detected light from a distant galaxy known as MXDFz4.4, which researchers previously believed should have been invisible. • This "impossible" light suggests that the galaxy existed during a period when the early universe was thought to be opaque. • The discovery is significant because it may provide critical insights into the process of cosmic reionization, explaining how the universe transitioned from opaque to transparent billions of years ago.

• NASA's Hubble Space Telescope has captured a new image of the globular cluster NGC 6426, featuring red, white, and blue stars that resemble a sparkler. • The image highlights Hubble's ongoing capability to provide detailed cosmic observations after more than three decades in orbit. • This data complements findings from other NASA missions, including the infrared-detecting James Webb Space Telescope.

• NASA is considering a potential orbit reboost for the Hubble Space Telescope to counteract its decaying orbit. • The agency's Science Mission Directorate is currently evaluating how to lower operating costs to make such a mission financially viable. • This effort is part of a broader strategy to reduce the expenses of extended missions and free up funding for new scientific projects.

• Researchers published the most thorough study of cosmic expansion in the journal Astronomy & Astrophysics on April 10, combining decades of research to derive the most precise Hubble constant yet while confirming that tension between early and late-universe measurements persists. • The study, launched at an International Space Science Institute Breakthrough Workshop in Bern, Switzerland in March 2025, expanded the cosmic distance ladder into a comprehensive survey called the Local Distance Network, achieving a goal considered 'potentially unreachable' a decade ago. • Study co-author Richard Anderson from the University of Göttingen stated that the Hubble tension reveals that 'something's missing' in the current understanding of basic physics on cosmological scales.