We reside in the cosmos as Sagan saw it—incredibly huge and truly grounding. It is a reality that, as he frequently pointed out, does not revolve around ...

The next generation of telescopes could soon allow astronomers to examine worlds orbiting dead stars for signs of life. Planets orbiting white dwarfs should be dead — at least one star in their system ...

Carl Sagan, a renowned astronomer, inspired millions to explore the universe. He championed curiosity, urging humanity to embrace the unknown. Sagan believed that admitting what we don't know fuels ...