Did the Pentagon Shoot Down a Harmless Ham Radio Balloon?

Mystery object shot down over Yukon may have been harmless 'pico balloon'

“Harmless” Bacteria Species Developing Alarming Number of Potentially Harmful Characteristics

Experiment Proves Bacteria Really Eat Plastic – Broken Down Into Harmless Substances

Common, usually harmless group of bacteria associated with higher death rates in kidney patients

New Insecticides Were Supposed To Be Harmless to Bees – But They Can Be Devastating to Honey Bee Health

NASA Successfully Deflected Harmless Asteroid In Test For Doomsday Scenario

The Frogs Vanished, Then People Got Sick. This Was No Harmless Coincidence.

Scientists Thought a Bacteria Was Harmless – They Were Wrong

Therapeutic drug renders cancer cell weapon harmless

Not Harmless Toys: Paintball Guns Are More Dangerous Than Previously Thought

Mystery child hepatitis cases linked to previously 'harmless' virus

The Most Threatening Asteroid Just got Downgraded to “Harmless”. No Impact in 2052