Hurricane Sam: What a Long, Strong Trip It’s Been
Powerful and long-lived, Sam is heading for a dramatic encounter as it moves further north. ...read more
Powerful and long-lived, Sam is heading for a dramatic encounter as it moves further north. ...read more
It doesn’t actually exist, but plenty of drugs are purported to ferret out the facts. These methods, sometimes used in law enforcement, raise scientific and ethical questions. ...read more
Older, thicker sea ice continues to disappear, ending the summer at or near the lowest levels ever seen. ...read more
If our planet hosted an industrial species before humans, the Silurian hypothesis asks, how would we know? ...read more
High radiation, low gravity and other environmental pressures could spur Martian humans to mutate relatively quicker than on Earth. ...read more