A new study led by Flinders University has flipped the historical narrative about Australia's thylacine, finding the native apex predator known as the "Tasmanian tiger" was significantly different from the wolves and wild dogs it was likened to before being hunted to extinction.
At least one person was killed and about 15 others were missing after a flash flood at the Grand Canyon, one of the most popular tourist sites in the United States, the National Park Service said in a statement Sunday.
Hurricane Karina formed Sunday in the Pacific Ocean and swiftly intensified into a dangerous major storm within hours, fueled by warm waters far offshore where it poses no immediate threat to land.
Humans have been observing the sky for thousands of years. Our ancestors were undoubtedly fascinated by it, but observing the heavens also had practical uses: It helped people measure time, both over the course of the day and through the changing seasons, and became especially important with the spread of agriculture. What is now seen as scientific frontiers, such as cosmology and astrophysics, are in fact only the latest chapter in an evolving history of observing and interpreting the sky.
