The Walking Dead: Dead City season 2 has officially begun in the US. Here's when new episodes are out.

Three people are dead, a fourth is critically injured and a man is in custody following a shooting near Haubstadt, Indiana, according to the Gibson County Sheriff's Office.

The team looked in the dead zones for signs of denitrification, which occurs when oxygen content is so low that microbes instead use nitrate to power their biological activity. Nitrogen has two stable ...