Radio telescopes have long scanned quiet patches of sky for a lone, artificial-sounding ping, but a growing body of research is ...

For decades, humanity has scoured the cosmos for any signs that we aren't alone in the universe. NASA spacecraft like the twin ...

This video explores obscure answers to the Fermi Paradox, asking why the universe seems silent if alien civilizations should ...

Solar winds and coronal mass ejections may scatter narrow signals, making them harder for Earth-based telescopes to detect.

The universe is simply huge, containing billions of stars, planets, and galaxies. When children get to know the enormity of space ...