Because of Coronavirus Lockdowns, Europe is Having the Same Drop in Pollution that we Saw in China

The pandemic caused by the novel coronavirus is creating all kinds of chaos for human society. But for the dear old Earth, and the humans and creatures that breathe its air, it’s a bit of a reprieve. Mirroring what happened in China during lock-down, Europe is now seeing the same drop in air pollution.

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When Martian Storms Really Get Going, they Create Towers of Dust 80 Kilometers High

When a huge dust storm on Mars—like the one in 2018—reaches its full power, it can turn into a globe-bestriding colossus. This happens regularly on Mars, and these storms usually start out as a series of smaller, runaway storms. NASA scientists say that these storms can spawn massive towers of Martian dust that reach 80 km high.

And that phenomenon might help explain how Mars lost its water.

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Screaming Sounds Sent to the Edge of Space, Confirming That… “In Space, No One Can Hear You Scream”

A unique, low-cost, and crowd-scream-sourced experiment has proven what all sci-fi movie fans know is true: In space, no one can hear you scream.”

That line is the tag line from the famous 1979 movie Alien, of course. And now an innovative experiment in Britain has shown that the writer of that movie was correct. To prove it, they used off-the-shelf electronics, an inexpensive balloon, and the recorded screams from a mother in South Africa.

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Eruption of the Raikoke Volcano, Seen From Space

The Raikoke Volcano, dormant for a very long time, has awoken from its slumber. The volcanic island is in the Kuril Island chain, near the Kamchatka Peninsula in Russia. Unlike its more volcanically active neighbours, Raikoke has been dormant since 1924.

Thanks to astronauts on the International Space Station, we have gorgeous photos of the eruption.

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Habitability of Planets Will Depend on Their Interiors

An illustration of the surface of the exoplanet Barnard's Star b. Image Credit: M. Kornmesser, ESA.

A lot of the headlines and discussion around the habitability of exoplanets is focused on their proximity to their star and on the presence of water. It makes sense, because those are severely limiting factors. But those planetary characteristics are really just a starting point for the habitable/not habitable discussion. What happens in a planet’s interior is also important.

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Did You Know that the Earth Loses Several Hundred Tons of Atmosphere to Space Every Day?

A pair of sounding rockets took aim at the aurora over Svalbard, Norway, to help scientists understand how Earth's atmosphere loses oxygen into space. Even though it's Earth's day side in the image, the launch location is so far north there's no daylight. Image Credit: Allison Stancil-Ervin of NASA’s Wallops Flight Facility.

Scientists have known for some time that Earth’s atmosphere loses several hundred tons of oxygen each day. They understand how this oxygen loss happens on Earth’s night side, but they’re not sure how it happens on the day side. They do know one thing though; they happen during auroras.

According to a press release from NASA’s Earth Observatory, no two oxygen outflow events are exactly the same, which makes understanding them a challenge. They call the events ‘fountains of gas’ that escape the Earth during auroral activity, and the Earth Observatory has a mission dedicated to understanding them.
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Noctilucent Clouds Perform Delicate Dance for NASA’s Balloon-Cam

Noctilucent clouds, or PMC's, form high in the atmosphere above the poles. NASA launched a five-day balloon mission to observe and photograph them. Image: NASA’s Goddard Space Flight Center/Joy Ng

Noctilucent clouds are one of the atmosphere’s most ethereal natural wonders. They form high in the mesosphere, about 80 km (50 mi) above the Earth’s surface, and are rarely seen. In July, 2018, NASA launched a five-day balloon mission, called PMC (Polar Mesospheric Clouds) Turbo, to observe them and photograph them.

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Cassini Data Has Revealed a Towering Hexagonal Storm at Saturn’s Northern Pole

A new study based on data from the Cassini mission is revealing something surprising in the atmosphere of Saturn. We’ve known about the storm at the gas giant’s north pole for decades, but now it appears that this massive hexagonal storm could be a towering behemoth hundreds of kilometers in height that has its base deep in Saturn’s atmosphere.

This grey-scale image of Saturn’s northern polar vortex was captured by the Cassini spacecraft. This image was captured from a distance of about 1.2 million km. A portion of Saturn’s rings are barely visible in the top right. Image: NASA/JPL-Caltech/Space Science Institute.

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