Most helium in the Universe is primordial helium, formed during the Big Bang. But a fraction of helium was formed by long-dead stars. Distinguishing between the two allows…
Excerpt from Universe Today. Read the full story at Universe Today →
October 12, 2026
Most helium in the Universe is primordial helium, formed during the Big Bang. But a fraction of helium was formed by long-dead stars. Distinguishing between the two allows…