Tag Archives: Earth

Heavy iron isotopes leaking from Earth’s core

by Becky Oskin, UC Davis, Phys.org

Earth’s molten core may be leaking iron, according to researchers who analyzed how iron behaves inside our planet.

The boundary between the liquid iron core and the rocky mantle is located some 1,800 miles (2,900 km) below Earth’s surface. At this transition, the temperature drops by more than a thousand degrees from the hotter core to the cooler mantle.

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Watch Earth Zoom By As A Spacecraft Passes Us On Its Way (Eventually) To Mercury

by Phil Plait, Syfy Wire

BepiColombo is a joint European-Japanese mission currently on its way to the planet Mercury. It will map the surface and magnetosphere of the small world, and also make measurements that will characterize its interior, including the weirdly oversized core of the planet. It’s actually three spacecraft in one: a pair of orbiters that carry the scientific detectors, and a transfer vehicle that supports the orbiters on their way to Mercury and will place them into their orbits around it.

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Astronomers clock extremely high winds on an object outside of our solar system

by Ashley Strickland, CNN

For the first time, scientists have been able to measure the wind speed on an object outside of our solar system, according to a new study. The object, known as a brown dwarf, is 33.2 light-years away from Earth.

Brown dwarfs aren’t quite stars, but they’re not planets either. These so-called “failed stars” are too big to be planets. The brown dwarf in this study is the size of Jupiter, the largest planet in our solar system, but it has 40 times the mass of Jupiter.

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Deep-sea rocks on Earth spark new hope for finding life on Mars

by Amanda Kooser, c|net

“I thought it was a dream,” the lead scientist says.

If there is (or once was) microbial life on Mars, it’s been hiding from our robotic explorers. Thanks to a determined scientist, we may have a better idea of how to go about looking for it.

University of Tokyo geomicrobiologist Yohey Suzuki spent a decade examining ancient volcanic rocks culled from the deep sea while on a hunt for elusive bacterial life. He finally found it by peering into the cracks.

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Coronavirus May Have Caused The Earth To Stop Vibrating So Much

by Hannah Osborne, Newsweek

Coronavirus may have inadvertently caused Earth to vibrate less, with lockdown measures leading to a huge drop in the use of industrial machinery and transportation around the world.

Seismologists have said that since measures to curb the spread of the virus were put in place, there has been a noticeable drop in the planet’s “seismic noise.” This is the persistent vibration of the ground as a result of a multitude of factors, including human activity.

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