presolar grains

Illustration of meteor entering Earth's atmosphere Source: lassedesignen / Adobe Stock

14 January, 2020 - 23:05 ancient-origins

Oldest Material On Earth Discovered To Be Older Than The Sun

Stars have life cycles. They're born when bits of dust and gas floating through space find each other and collapse in on each other and heat up. They burn for millions to billions of years, and then...