A new study suggests that the first water molecules in the universe may have formed far earlier than previously assumed —potentially just 100 to 200 million years after the big bang. This timeline ...

The early universe, fresh from the Big Bang, was a hot, dense soup of simple elements: hydrogen, helium, and trace amounts of ...

Without water, life on Earth could not exist as it does today. Understanding the history of water in the universe is critical to understanding how planets like Earth come to be. Astronomers typically ...

You might assume that there has always been water on Earth — that water was there from the very beginning when our planet formed. But scientists increasingly think that water on Earth may have ...