F35 hit over Iran: viral animated clip suggests Iran may have detected an F-35 stealth fighter using passive infrared sensors, tracking heat signatures instead of radar. This theory emerges as Iran ...

Odds are, you’ve taken pills before; it’s a statistical certainty that some of you reading this took several this morning.

Every night, the sky does something invisible and enormous. Heat escapes from Earth’s surface upward through the atmosphere and out into the cold of space. This is a process as old as the planet ...

As human-caused climate change continues to raise temperatures across the globe, understanding how birds regulate their temperature is vital for their conservation. But how much heat birds emit—an ...