The brain is a black box of densely packed neurons, blood vessels and immune cells, all locked away in a sealed skull.

For the first time, a peer-reviewed study has documented sustained increased levels of dissolved oxygen in the Long Island Sound, environmental officials said, a sign of improving marine health they ...

Low-oxygen areas in Long Island Sound dropped last summer to the smallest footprint recorded in nearly 40 years, according to data from Connecticut’s Department of Energy and Environmental Protection.