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Planetary Sciences Jul 26, 2024

Kepler's 1607 pioneering sunspot sketches solve solar mysteries 400 years later

Using modern techniques, researchers have re-examined Johannes Kepler's half-forgotten sunspot drawings and revealed previously-hidden information about the solar cycles before the grand solar minimum.

Analytical Chemistry Jul 26, 2024

Ice 0: Researchers discover a new mechanism for ice formation

Ice is far more complicated than most of us realize, with over 20 different varieties known to science, forming under various combinations of pressure and temperature. The kind we use to chill our drinks is known as ice I, ...

Environment Jul 25, 2024

Monday was the warmest day recorded on Earth, but how do scientists actually measure that?

In the past week, Earth's record for the hottest day was broken twice. Sunday July 21 was declared Earth's hottest day since records began, when average surface temperature reached 17.09°C. On Monday the record fell again, ...

Planetary Sciences Jul 25, 2024

What lunar caves tell us about the shared origins of the Earth and the moon

Using radar, a Nasa spacecraft, Lunar Reconnaissance Orbiter (LRO), has confirmed the existence of caves beneath the lunar surface. Here's why such geological features will be key for establishing a base on the moon, and ...

Astronomy Jul 25, 2024

How NASA's Roman Space Telescope will illuminate cosmic dawn

Today, enormous stretches of space are crystal clear, but that wasn't always the case. During its infancy, the universe was filled with a "fog" that made it opaque, cloaking the first stars and galaxies. NASA's upcoming Nancy ...

Planetary Sciences Jul 25, 2024

Carbon oxides on Uranus' moon Ariel hint at hidden ocean, Webb telescope reveals

The surface of Uranus' moon Ariel is coated with a significant amount of carbon dioxide ice, especially on its "trailing hemisphere" that always faces away from the moon's direction of orbital motion. This fact presents a ...

Archaeology Jul 24, 2024

Chemical analyses find hidden elements from renaissance astronomer Tycho Brahe's alchemy laboratory

In the Middle Ages, alchemists were notoriously secretive and didn't share their knowledge with others. Danish Tycho Brahe was no exception. Consequently, we don't know precisely what he did in the alchemical laboratory located ...

Economics & Business Jul 24, 2024

'Hot' hedge funds come up short for investors, researchers find

In at least one way, asset classes in capital markets are not unlike consumer products. As they compete for investor cash, trend cycles often come into play. The movement of demand toward the "hot" investment vehicle of the ...

Environment Jul 24, 2024

Study: Gases from burning biomass react within clouds, forming secondary organic aerosols

Thousands of tiny particles in the atmosphere unseen by the naked eye scatter and absorb solar radiation and become one of the bases for the formation of clouds. A lot of these particles are not directly emitted into the ...

Planetary Sciences Jul 24, 2024

Roadmap details how to improve exoplanet exploration using the James Webb Space Telescope

The launch of NASA's James Webb Space Telescope (JWST) in 2021 kicked off an exciting new era for exoplanet research, especially for scientists looking at terrestrial planets orbiting stars other than our sun. But three years ...

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