NASA has announced its selection of the Ultraviolet Explorer (UVEX) as its next astrophysics Medium-class Explorer mission. This important mission will conduct an extensive survey of the sky using ultraviolet wavelengths, focusing on identifying ultraviolet sources of energetic events. The project, led by prominent Caltech astronomer Fiona Harrison, aims to enhance our understanding of both nearby and distant galaxies, as well as dynamic events throughout the vast expanse of the universe.
Originally scheduled for launch in 2028, UVEX will now be launched in 2030 due to budget challenges within NASA’s astrophysics program. The two-year delay is a result of the need to extend the initial design work and conduct a preliminary design review to account for the budget constraints. This delay had been previously highlighted by Paul Hertz, the former director of NASA’s astrophysics division, who warned of reduced budgets projected for fiscal year 2023.
In addition to UVEX, NASA also considered two other projects, Moon Burst Energetics All-sky Monitor (MoonBEAM) and A Large Area burst Polarimeter (LEAP), for further development. However, due to budget pressures, these projects were not selected for development. NASA is currently facing restricted funding levels and must carefully prioritize missions and activities to maintain a balanced portfolio.
Mark Clampin, the director of NASA’s astrophysics division, reassured the scientific community and the public that the agency remains committed to funding astrophysics programs and maintaining a positive outlook for current and future astrophysics missions. While budget constraints pose challenges, NASA is dedicated to advancing our understanding of the universe and actively working to overcome these obstacles.
The UVEX mission serves as a testament to NASA’s ongoing efforts to explore the cosmos and unravel its mysteries. By conducting an all-sky survey at ultraviolet wavelengths, UVEX will play a vital role in unlocking the secrets of nearby and distant galaxies while shining a light on energetic events occurring throughout the universe.
