Science

Mutations are normal, but there’s still a lot virologists don’t understand about the new variants.

Chlorpyrifos was finally banned in 2021—but agricultural groups are speaking out.

Houston officials are planting native trees that absorb carbon dioxide and offer other benefits.

The black hole leaks out streams of gas after swallowing large masses.

They're in everything from your grilled salmon to your favorite brand of pickles.

As vehicle emissions drop, so do pollution-related deaths.

Predicting the conditions where tornadoes are able to form is far easier than forecasting where they will actually land.

Makers of the new vaccine say it's highly effective against the Delta variant.

This meteor shower produces up to 120 shooting stars an hour at its peak.

Research on the immune system response to Omicron gives us clues about vaccine efficacy. Here's what it can tell us, and what it can't.