Modeling Earth"s magnetosphere in the laboratory
A magnetosphere forms around any magnetized object, such as a planet, that is immersed within a stream of ionized gas, called plasma. Because Earth possesses an intrinsic magnetic field, the planet is surrounded by a large magnetosphere that extends.....»»
How did magma oceans evolve on early Earth and Mars? Iron chemistry and primordial atmospheres offer clues
Before Earth became the blue planet, it was engulfed by a very different kind of ocean: a vast, deep magma ocean reaching down hundreds or perhaps even thousands of kilometers......»»
Catastrophically warm predictions are more plausible than previously thought, say climate scientists
What will the future climate be like? Scientists around the world are studying climate change, putting together models of the Earth's system and large observational datasets in the hopes of understanding—and predicting over the next 100 years—the.....»»
Scientists recreate sound of Earth"s magnetic flip 41,000 years ago
Approximately 41,000 years ago, Earth's magnetic field briefly reversed during what is known as the Laschamp event. During this time, Earth's magnetic field weakened significantly—dropping to a minimum of 5% of its current strength—which allowed.....»»
World"s highest-voltage gun accelerates electrons from zero to 80% the speed of light
Scientists at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory have designed and tested the world's highest voltage polarized electron gun, a key piece of technology needed for building the world's first fully polarized Electron-I.....»»
Northern lights may be visible in much of upper US on Thursday, Friday
Still haven't caught a glimpse of those shimmery northern lights? Minnesotans have a good chance to snag one of those popular aurora borealis photos at the end of this week thanks to a "severe" geomagnetic storm expected to reach Earth on Thursday......»»
US forecasts severe solar storm starting Thursday
A massive ball of plasma and accompanying magnetic field ejected from the sun is expected to strike Earth on Thursday morning, potentially triggering auroras as far south as Alabama, according to US forecasters......»»
How to watch Crew-8 depart the space station on Sunday
Three American astronauts and a Russian cosmonaut are preparing to depart the International Space Station about 250 miles above Earth......»»
Novel etching technique enhances absorptivity of powders for metal 3D-printing
In a significant advancement for metal additive manufacturing, researchers at Lawrence Livermore National Laboratory (LLNL) and their academic partners have developed a technique that enhances the optical absorptivity of metal powders used in 3D prin.....»»
Jupiter"s Great Red Spot shows unexpected size changes
Astronomers have observed Jupiter's legendary Great Red Spot (GRS), an anticyclone large enough to swallow Earth, for at least 150 years. But there are always new surprises—especially when NASA's Hubble Space Telescope takes a close-up look at it......»»
NASA terminal transmits first laser communications uplink to space
NASA's LCOT (Low-Cost Optical Terminal), a ground station made of modified commercial hardware, has transmitted its first laser communications uplink to the TBIRD (TeraByte Infrared Delivery), a tissue box-sized payload formerly in low Earth orbit......»»
Severe solar storm could stress power grids even more as US deals with major back-to-back hurricanes
A severe solar storm is headed to Earth that could stress power grids even more as the U.S. deals with major back-to-back hurricanes, space weather forecasters said Wednesday......»»
The transition to a circular bioeconomy requires getting prices right, study says
Conventional food and agricultural production systems employ a linear "take, make, waste" approach: taking natural resources from the Earth to make food and fuel, generating waste that contaminates the soil and water, and emitting harmful pollutants......»»
How accessible is titanium on the moon?
Mining the moon to extract its resources is a critical step on humanity's path into the solar system. One of the most common resources on the moon is considered relatively valuable here on Earth—titanium......»»
Injured comb jellies can fuse into a single organism
Ctenophores merge with neighbors at wound sites, making animals with duplicate parts. Comb jellies, technically known as ctenophores, are one of the weirdest creatures on Earth. T.....»»
Control the path and power of hurricanes like Milton? Forget it, scientists say
Hurricanes are humanity's reminder of the uncontrollable, chaotic power of Earth's weather......»»
The other greenhouse gases warming the planet
While carbon dioxide, or CO2, is the best known greenhouse gas, several others, including methane and nitrous oxide, are also driving global warming and altering the Earth's climate......»»
Research suggests Earth"s oldest continental crust is disintegrating
Earth's continental configurations have changed dramatically over its billions of years' history, transforming not only their positions across the planet, but also their topography as expansion and contraction of the crust made a mark on the landscap.....»»
SpaceX’s Hera launch offers sublime view of Earth
A SpaceX rocket that launched a planetary defense mission on Monday captured a breathtaking view of Earth shortly after reaching orbit......»»
Limestone and iron reveal puzzling extreme rain in Western Australia 100,000 years ago
Almost one-sixth of Earth's land surface is covered in otherworldly landscapes with a name that may also be unfamiliar: karst. These landscapes are like natural sculpture parks, with dramatic terrain dotted with caves and towers of bedrock slowly scu.....»»
New Kuiper Belt objects lurk farther away than we ever thought
Earth's Kuiper Belt appears to be substantially larger than we thought. In the outer reaches of the Solar System, beyond the ice giant Neptune, lies a ring of comets and dwarf pla.....»»