Toothpaste has a hard job. Not only does it have to perform essential functions like scrubbing that coffee residue from your pearly whites, but it also must stay in the tube, exit smoothly under pressure and balance on a ...
Analytical Chemistry
Nov 9, 2023
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Long-term satellite data shows a significant cooling effect of vegetation on land surface temperature. The searing heat of the Arabian Peninsula translates to a population vulnerable to heat stress. As temperatures continue ...
Environment
Nov 6, 2023
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Sunspots change in number depending on how much magnetic activity the solar dynamo generates. But there's not total chaos: These changes occur in a cycle, which lasts about 11 years on average. The sun also experiences extended ...
Astronomy
Oct 10, 2023
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As we began to discover hundreds, then thousands of exoplanets, we found that there were two types of worlds unlike anything in our solar system. The first are super-Earths. These worlds straddle the line between large rocky ...
Planetary Sciences
Oct 5, 2023
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There are so many asteroids. Just in our own backyard, we've found over 30,000 Near Earth asteroids. Exploring them using traditional methods and launching a custom-made mission, like Hayabusa or OSIRIS-REx, would almost ...
Space Exploration
Jul 27, 2023
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Diminished anthropogenic pollutant emissions during 2020 COVID-19 lockdowns reduced snowmelt in the Himalayas, according to a study published in the journal PNAS Nexus.
Earth Sciences
Jun 28, 2023
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There are always more space missions than there is money to support them. Ultimately, some make the cut, and some do not. Various factors go into that decision, though those factors can change over the years and decades that ...
Astronomy
Jun 12, 2023
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Impact cratering happens on every solid body in the solar system. In fact, it is the dominant process affecting the surfaces on most extraterrestrial bodies today.
Astronomy
Jun 5, 2023
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The truth is out there—but we're going to need to look harder.
Space Exploration
May 31, 2023
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76
To help learners of all ages understand how to safely observe the Oct. 14, 2023, annular solar eclipse and the April 8, 2024, total solar eclipse, NASA has released a new set of resources for educators.
Education
May 18, 2023
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