How a twin Earth could detect Earth

A research team led by Dr. Sofia Sheikh of the SETI Institute, in collaboration with the Characterizing Atmospheric ...
Space.com

Hidden fault beneath Canada could trigger massive earthquake after 12,000 years of silence

Advanced satellite and lidar mapping has uncovered signs that the Tintina fault in Canada's Yukon may be primed for a powerful earthquake. A long-overlooked geologic fault in Canada's remote north may ...