science 🔭 Metal gas found around early galaxies
Researchers have found direct evidence of metal-enriched gas associated with galaxies during the early universe. This discovery was made using JWST's NIRSpec spectroscopy on three specific galaxies. The observations were conducted at redshifts ranging from z ≈ 7 to z ≈ 9. This provides crucial constraints on the ionization structure of gas around these first galaxies. The findings suggest significant metal enrichment was happening much earlier than previously confirmed.