This week we take a look at layers -- layers in nebulae, layers in the Martian atmosphere, and layers in our own atmosphere.

In a special bonus SETI Live, communication specialist Beth Johnson welcomes astronomer and entrepreneur Franck Marchis to introduce SkyMapper, a new global network of smart telescopes and all-sky ...

What happens when a planet contains immense quantities of water but is far too hot for that water to remain liquid?

The Amazon is often described as an ecosystem under dire threat due to climate change and deliberate deforestation. Yet there is still considerable hope that these threats can be mitigated. In the ...

NASA’s James Webb Space Telescope observed Herbig-Haro 49/50, an outflow from a nearby still-forming star, in high-resolution near- and mid-infrared light. The young star is off to the lower right ...

Your browser does not support the audio element. The worry about whether H5N1 will trigger a human pandemic has concealed a startling reality. Avian influenza has ...

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November 20, 2025, Mountain View, CA -- The SETI Institute is pleased to open the call for applications for the 2026 Mino ...

This month, we are continuing our profile series featuring our exceptional SETI AIR program Advisors.

Discovery: On July 2, 2025, astronomers confirmed Comet 3I/ATLAS, marking only the third interstellar object (ISO) ever detected passing through our Solar System, after 1I/ʻOumuamua (2017) and ...

Under the tropical skies of Puerto Rico, a new observatory joined the LaserSETI Network, expanding the SETI Institute’s ability to search for technosignatures. Bringing cutting-edge instruments to an ...

Image showing the positions of all the stars targeted by COSMIC thus far with data recorded into a database of potential signals. We have collected data on over 485,000 sources across the frequency ...