Oxygen has been discovered literally at the edge of time.
A groundbreaking discovery is compelling astronomers to revise our understanding of the universe's earliest epochs. Observations with the James Webb Space Telescope (JWST) and the Atacama Large Millimeter/submillimeter Array (ALMA) have revealed oxygen in the galaxy JADES-GS-z14-0, which existed a mere 300 million years after the Big Bang—making this the most distant detection of the element to date.
This is kind of a problem. In the universe's youth, only lightweight elements like hydrogen and helium (plus traces of lithium) were present. Heavier elements such as oxygen are forged in the cores of stars and scattered into space via supernova explosions.
Detecting substantial oxygen so early implies that several generations of massive stars formed, lived briefly, and died explosively in an astonishingly short timeframe, challenging established models of gradual cosmic chemical enrichment.
Compounding the surprise, JADES-GS-z14-0 harbors far more heavy elements than predicted—along with exceptional brightness and mass—for a galaxy from this era. This suggests rapid, vigorous evolution that current simulations struggle to account for.
The findings paint a picture of a far more active and chemically advanced early universe than previously envisioned. If oxygen-rich galaxies like this were widespread, it could force a fundamental rethink of galaxy formation processes in the first few hundred million years post-Big Bang.
Astronomers are now eagerly hunting for additional examples of these primordial, metal-enriched systems lurking in the cosmic dawn.
[Schouws, S., et al. (2025). Detection of [OIII]88μm in JADES-GS-z14-0 at z=14.1793; Carniani, S., et al. (2025). The eventful life of a luminous galaxy at z = 14. arXiv preprints]
They say that we Greeks throw unforgettable "panigyria" as an expression of our inner soul and to celebrate all the things that make us what we are and need protecting.
The biggest honour is when you participate! 😜
#discovergreece
Vid: michaelpsouk (IG)
und die Vergessenen auf dieser Welt. Wir haben viel gesprochen, diskutiert. Wir saßen zusammen und sie hat mich mit auf ihre gedanklichen Tauchgänge genommen. Denn eines zeichnete sie vor allem aus: sie hatte so viel Tiefgang im Blick auf das Leben. Mathilde ist für immer👇🏼
Dein Sieg über die Unwissenheit und des Neides komme und erlöse uns von der Niedertracht, Athene! Deine Taktik beflügle uns Göttin Minerva und erhebe uns zum Menschen ! 🥰