Zaynab Joseph, 40, died after falling 140 feet off a cliff while hiking Bear Mountain in Sedona, Arizona, with her husband and toddler, authorities said.
Elon Musk's SpaceX successfully transported an international crew of four astronauts, including two Americans and one Russian, to the International Space Station....
President Donald Trump and EPA Administrator Lee Zeldin formally announced the rescission of the 2009 EPA Endangerment Finding on greenhouse gases Thursday...