Politicians around Australia are proposing ambitious plans to export renewable energy from Australia, using high-voltage power lines laid under the oceans.
The Earth’s core is cooling down very slowly over time. One day, when the core has completely cooled and become solid, it will have a huge impact on the whole planet. Scientists think that when that happens, Earth might be a bit like Mars, with a very thin atmosphere and no more volcanoes or earthquakes. Then it would be very difficult for life to survive – but that won’t be a problem for several billions of years
Each time there’s a headline about driverless trucking technology, another piece is taken out of the old equation. First, an Uber/Otto truck’s safety driver went hands-off once the truck reached the highway (and said truck successfully delivered its valuable cargo of 50,000 beers). Then, Starsky Robotics announced its trucks would start making autonomous deliveries without a human in the vehicle at all.
The outer layer of the Earth, the solid crust we walk on, is made up of broken pieces, much like the shell of a broken egg. These pieces, the tectontic plates, move around the planet at speeds of a few centimetres per year. Every so often they come together and combine into a supercontinent, which remains for a few hundred million years before breaking up. The plates then disperse or scatter and move away from each other, until they eventually – after another 400-600 million years – come back together again.
The six-day-old Camp Fire has already attained the unfortunate title of California's deadliest fire. The Camp Fire has already led to 42 deaths with a number of residents still unaccounted for. It is also the most destructive in California history as well with over 7,000 structures destroyed by the blaze. The fire began on Nov. 08, 2018 and has grown to a staggering 125,000 acres in just under a week. The cause of this blaze is still under investigation. California state regulators are investigating two utility companies that reported incidents close in time and location to the start of the Camp fire. Over 52,000 people have been evacuated due to the Camp Fire in over 1,300 shelters. To date the blaze is only 30% contained.
A novel “floating pipe” to recover plastic from the ocean has just arrivedon its maiden voyage to the Great Pacific Garbage Patch. Run by Dutch start-up Ocean Cleanup, the scheme involves a 600m-long floating pipe connected to a net, which herds plastic into place before it is gathered and taken to shore by specialist boats.
Arctic sea ice likely reached its 2018 lowest extent on Sept. 19 and again on Sept. 23, according to NASA and the NASA-supported National Snow and Ice Data Center (NSIDC) at the University of Colorado Boulder. Analysis of satellite data by NSIDC and NASA showed that, at 1.77 million square miles (4.59 million square kilometers), 2018 effectively tied with 2008 and 2010 for the sixth lowest summertime minimum extent in the satellite record.
On the cusp of our atmosphere live a thin group of seasonal electric blue clouds. Forming 50 miles above the poles in summer, these clouds are known as noctilucent clouds or polar mesospheric clouds — PMCs. A recent NASA long-duration balloon mission observed these clouds over the course of five days at their home in the mesosphere. The resulting photos, which scientists have just begun to analyze, will help us better understand turbulence in the atmosphere, as well as in oceans, lakes and other planetary atmospheres, and may even improve weather forecasting.
Shortly after Hurricane Helene formed off the coast of West Africa on September 7, it did something unusual. Instead of following most hurricanes westward across the Atlantic, Helene turned north towards the UK and Ireland. Now downgraded to an “ex-hurricane”, Storm Helene is nonetheless expected to bring strong winds across much of England and Wales when it hits on September 17.