What's that smell? Broccoli emits gas that could signal presence of alien life
Broccoli, algae and many other plants and microbes on Earth purge toxins by morphing them into gases that might be present in exoplanet atmospheres, signaling life.
TroibNews 
Broccoli, algae and many other plants and microbes on Earth purge toxins by morphing them into gases that might be present in exoplanet atmospheres, signaling life.
