JOURNAL ARTICLE

U.S. abandons hunt for signal of cosmic inflation.

  • Published In: Sciencemag.org, 2025. P. N.PAG 1 of 3

  • Database: Applied Science & Technology Source Ultimate 2 of 3

  • Authored By: Cho, Adrian 3 of 3

Abstract

The article discusses the cancellation of the CMB-S4 project, a proposed $900 million initiative aimed at studying the cosmic microwave background (CMB) radiation to find evidence of cosmic inflation following the Big Bang. The project was intended to utilize advanced arrays of microwave telescopes at the South Pole and in Chile's Atacama Desert, but the National Science Foundation (NSF) and the Department of Energy (DOE) announced they could no longer support it. CMB-S4 had been highly prioritized in recent surveys for its potential to provide significant insights into cosmology, particularly through the detection of gravitational waves. The cancellation is seen as a setback for scientists in various fields, although the NSF and DOE plan to continue collaborating with the CMB science community on existing experiments. [Extracted from the article]

Additional Information

  • Source:Sciencemag.org. 2025/07, pN.PAG
  • Document Type:Article
  • Subject Area:Astronomy and Astrophysics
  • Publication Date:2025
  • Accession Number:186625580
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