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

This year has been a spectacular one for celestial phenomena. The northern lights delighted in unexpected ways while a total... more

Just because something is invisible doesn’t mean it isn’t there. We can’t see gases in our atmosphere, such as carbon... more

Imagine life without animals, trees, and fungi. The world would look very different. But while the first life was surely... more

Near death experiences can be profound and even life changing. People describe seeing bright lights, staring into the abyss, or... more

How do we know where to look for life on other planets? SETI scientists use analog sites on Earth, not only... more

You interact with about two-thirds of the elements of the periodic table every day. Some, like carbon, oxygen, and nitrogen,... more

The Amazon is often described as an ecosystem under dire threat due to climate change and deliberate deforestation. Yet there... more

A thousand years ago, most people didn’t own a single book. The only way to access knowledge was to consult... more

Extreme heat is taking its toll on the natural world. We use words like “heat domes” and “freakish” to describe... more