The seven planets that tightly orbit TRAPPIST-1 likely underwent an inward migration over time, influencing the state of water on the planets’ surfaces. (Credit: NASA/JPL-CalTech)
Hope was ignited in the science community when researchers discovered that three of the seven Earth-size planets orbiting TRAPPIST-1, a cool red dwarf about 40 light-years from Earth, are within the star’s habitable zone and could have flowing water on their surfaces.
But while the presence of water undou ...read more
Human footprints such as this one, known as Track #17 and digitally enhanced on the right, suggest people were walking along North America’s Pacific Coast 13,000 years ago. (Credit Duncan McLaren)
Nearly 30 human footprints from at least three different individuals, found at a remote island off Canada’s Pacific Coast, could be the latest evidence that people arrived in North America by sea. At about 13,000 years old, the tracks pre-date the end of the last ice age.
Ancient ...read more
Welcome to Triassic Park! Researchers spent a decade working at remote African sites to fill in serious gaps in our understanding of life at the Dawn of the Dinosaur Age. The scene, including dino-relative Teleocrater in foreground, illustrates what mid-Triassic Tanzania might have looked like 240 million years ago. (Credit Mark Witton/Natural History Museum, London)
You’ve probably heard about The Great Dying, more formally known as the End-Permian mass extinction, when more than 95 perc ...read more
A gun turret containing a Mark 12 5-inch gun from the USS Juneau that was discovered as part of the sunken warship’s wreckage on March 17, 2018. Credit: Navigea Ltd.
One of the most well-known stories of family sacrifice in wartime is the loss of the five Sullivan brothers aboard the light cruiser USS Juneau during World War II. That story resurfaced after an expedition headed by Microsoft co-founder Paul Allen discovered wreckage from the USS Juneau lying on the ocean floor in the South ...read more
Author Vishay SinghPosted on Categories Discover Magazine
