Green, murky water can signal more than an eyesore. Certain blooms raise safety concerns for swimmers, pets, and homeowners ...

In the South China Sea, near the Paracel Islands, the aqua-colored waters of an expansive shallow reef platform suddenly ...

Snow isn't always white; algae can make it look green, red, or orange, and scientists are trying to understand how and why these colorful patches appear.

New aquarium owners often face a common issue: a dusty brown film on surfaces. This isn't true algae but diatoms, microscopic ...

Scientists discover 26 new bacterial species in NASA cleanrooms, revealing surprisingly resilient microbes with potential ...