Webb telescope helps refine Hubble constant, suggesting resolution to long-standing expansion rate debate

For the past decade, scientists have been trying to get to the bottom of what seemed like a major inconsistency in the universe. The universe expands over time, but how fast it's expanding has seemed to differ depending on whether you looked early in the universe's history or the present day. If true, this would have presented a major problem to the gold-standard model that represents our best understanding of the universe.

Webb telescope helps refine Hubble constant, suggesting resolution to long-standing expansion rate debate

For the past decade, scientists have been trying to get to the bottom of what seemed like a major inconsistency in the universe. The universe expands over time, but how fast it's expanding has seemed to differ depending on whether you looked early in the universe's history or the present day. If true, this would have presented a major problem to the gold-standard model that represents our best understanding of the universe.

Hundreds of galaxies illuminate the early universe 

Galaxy clusters are important for studying the large-scale structure of the universe and the evolution of galaxies over cosmic time.

Oxygen detected in the most distant galaxy ever found

Astronomers have detected oxygen in the most distant galaxy ever found. It’s 13.4 billion light-years away from Earth, according to new research.

Kính viễn vọng Webb phát hiện cực quang động lực của Sao Mộc - Thế Giới Trong Tầm Tay

Kính viễn vọng Webb của NASA tiết lộ rằng cực quang của Sao Mộc năng động và mạnh mẽ hơn bao giờ hết.

Bluesky

Q&A: Webb finds asteroid 2024 YR4 is building-sized

NASA's James Webb Space Telescope recently turned its watchful eye toward asteroid 2024 YR4, which we now know poses no significant threat to Earth in 2032 and beyond.