Earth’s outer shell ballooned during massive growth spurt 3 billion years ago

 Around 3 billion years ago, Earth‘s crust ballooned during a massive growth spurt, geoscientists have found. At that time, just 1.5 billion years after Earth formed, the mantle — the layer of silicate rock between the crust and the outer core that was more active in the past — heated up, causing magma from that […]

Up to a billion tons of waste potentially burned in the open every year

Credit: Aline Tong/Shutterstock As much as one billion tons of waste could be burned in open and uncontrolled fires around the world each year, according to one estimate – close to half of all the municipal solid waste generated on Earth. But even if the true total is a fraction of that amount, the impact […]

Most accurate map of our galaxy pinpoints 1.8 billion cosmic objects

Astronomers were hit Thursday (Dec. 3) with a huge wave of data from the European Space Agency’s Gaia space observatory. Those researchers can now explore the best-yet map of the Milky Way, with detailed information on the positions, distances and motion of 1.8 billion cosmic objects, to help us better understand our place in the […]

Pebble Mine developer promised riches, but expects $1.5 billion subsidy from Alaskans

Credit: CC0 Public Domain The company seeking to develop Pebble Mine in the headwaters of Bristol Bay has long promised that the controversial project would bring Alaska jobs, economic growth and tax revenue. But newly released undercover videos made by an environmental advocacy group show that Northern Dynasty Minerals Ltd. expects a massive state subsidy […]

Ultrafast camera films 3-D movies at 100 billion frames per second

A three-dimensional video showing a pulse of laser light passing through a laser-scattering medium and bouncing off reflective surfaces. Credit: Caltech In his quest to bring ever-faster cameras to the world, Caltech’s Lihong Wang has developed technology that can reach blistering speeds of 70 trillion frames per second, fast enough to see light travel. Just […]