Our understanding of the universe begins with the Big Bang, a moment in time where the universe began expanding into what we see around us now. Big Bang nucleosynthesis describes how only the lightest ...

Just 39 light-years away, the Trappist-1 system hosts seven Earth-sized planets orbiting a dim red dwarf star,three of which lie within the habitable zone. These alien worlds may harbor the ...

Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby sun-like star, providing a ...