The SETI Institute’s search for alien biosignatures and technosignatures depends on radio telescopes. You may have seen the ...

The cosmos is magnificent and immeasurable, teeming with countless exoplanets and infinite possibilities. Yet, amidst this grand spectacle, a singular question beckons: Are we alone? Since our ...

Your gift goes double the distance during our December Matching Gift Challenge. We are close to our goal...can you take us to the finish line?