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Astronomy Nov 14, 2023

Brightest flash ever disturbed Earth's atmosphere last year

Last year the brightest flash of light ever seen in the night sky disturbed Earth's upper atmosphere in a way that has never before detected before, researchers said on Tuesday.

Environment Nov 13, 2023

We need a global treaty to solve plastic pollution—acid rain and ozone depletion show us why

After years of discussion, international negotiations on a global plastics treaty resume this week in Nairobi, Kenya, at the UN Environment Programme headquarters.

Space Exploration Nov 10, 2023

A close-up, on-the-ground view of Europe's next-generation satellites

On Nov. 10, journalists were given an up-close view of two very special spacecraft that will soon empower weather services in Europe with more and higher quality data for weather forecasting.

Astronomy Nov 9, 2023

Glow in the visible range detected for the first time in the Martian night

A scientific team led by researchers from the Laboratory for Planetary and Atmospheric Physics (LPAP) at the University of Liège (BE) has just observed, for the first time, lights in the night sky over Mars using the UVIS-NOMAD ...

Earth Sciences Nov 6, 2023

A comprehensive approach to tackling pollution in Houston and beyond

With its notoriously hot and humid climate and robust industrial environment, Houston is one of the most ozone-polluted cities in the United States. Now, a University of Houston research team is integrating the power of machine ...

Earth Sciences Nov 4, 2023

2023 ozone hole ranks 16th largest, NASA and NOAA researchers find

The 2023 Antarctic ozone hole reached its maximum size on Sept. 21, according to annual satellite and balloon-based measurements made by NASA and NOAA. At 10 million square miles, or 26 million square kilometers, the hole ...

Earth Sciences Nov 1, 2023

Ozone hole is about average size, despite undersea volcano eruption that was expected to worsen it

With last year's undersea volcano injecting massive amounts of water high into the atmosphere, scientists were bracing for a big Antarctica ozone hole this fall. But it didn't happen.

Environment Oct 25, 2023

A tale of three pollutants in Chicago: NASA-led mission looks to help by mapping air pollutants at a neighborhood scale

It was a hazy August day on Chicago's South Side, and Nedra Sims Fears was hosting a small gathering to talk about the air. Interstate-94, which bisects her Chatham neighborhood, hummed nearby.

Astrobiology Oct 23, 2023

Carl Sagan detected life on Earth 30 years ago—here's how his experiment is helping us search for alien species today

It's been 30 years since a group of scientists led by Carl Sagan found evidence for life on Earth using data from instruments on board the Nasa Galileo robotic spacecraft. Yes, you read that correctly. Among his many pearls ...

Earth Sciences Oct 20, 2023

New study shows Hunga-Tonga Hunga-Ha'apai eruption depleted ozone layer

A large team of atmospheric specialists has found that when the Hunga-Tonga Hunga-Ha'apai volcano erupted last year, it took part of the ozone layer with it. Their findings are published in the journal Science.

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