Scientists have discovered traces of water while analyzing lunar soil samples collected by China’s Chang’e-5 rover. While NASA already announced the discovery of water on the Moon’s sunlit areas back ...

Editor’s Note: Sign up for CNN’s Meanwhile in China newsletter which explores what you need to know about the country’s rise and how it impacts the world. Hong Kong CNN — As Chinese scientists ...

Microplastics are tiny, plastic fragments—many too small to see—found in the air, soil and water. Measuring their abundance in nature can direct cleanup resources, but current detection methods are ...

Water samples are tested for E. coli, and beaches are deemed safe if levels are below 300 E. coli per 100 milliliters. The state follows Clean Water Act protocols if unsafe levels are found, ...