NASA’s Aquarius Returns Global Maps of Soil Moisture
Scientists working with data from NASA’s Aquarius instrument have released worldwide maps of soil moisture, showing how the wetness of the land fluctuates with the seasons and weather phenomena… Aquarius was built to study the salt content of ocean surface waters. The new soil wetness measurements were not in the mission’s primary science objectives, but a NASA-funded team led by U.S. Department of Agriculture (USDA) researchers has developed a method to retrieve soil moisture data from the instrument’s microwave radiometer.
Soil moisture, the water contained within soil particles, is an important player in Earth’s water cycle. It is essential for plant life and influences weather and climate. Satellite readings of soil moisture will help scientists better understand the climate system and have potential for a wide range of applications, from advancing climate models, weather forecasts, drought monitoring and flood prediction to informing water management decisions and aiding in predictions of agricultural productivity.
Every atom and molecule has its own chemical signature determined by its electromagnetic spectrum. By breaking collected light into its constituent spectral colors, astronomers are able to detect the chemical compositions of distant objects.
We know our Sun is composed of mostly hydrogen because we can compare its spectrum to that of a sample of hydrogen gas.
Physicists Prove Surprising Rule of Threes
“More than 40 years after a Soviet nuclear physicist proposed an outlandish theory that trios of particles can arrange themselves in an infinite nesting-doll configuration, experimentalists have reported strong evidence that this bizarre state of matter is real.”
Yeah he was.Via my city’s newspaper.
CRIRES model-based computer-generated impression of the Plutonian surface, with atmospheric haze, and Charon and the Sun in the sky. Pluto’s atmosphere consists of a thin envelope of nitrogen, methane, and carbon monoxide gases, which are derived from the ices of these substances on its surface.
The Pluto–Charon system is noteworthy for being one of the Solar System’s few binary systems, defined as those whose barycenter lies above the primary’s surface (617 Patroclus is a smaller example, the Sun and Jupiter the only larger one). This and the large size of Charon relative to Pluto has led some astronomers to call it a dwarf double planet. The system is also unusual among planetary systems in that each is tidally locked to the other: Charon always presents the same face to Pluto, and Pluto always presents the same face to Charon: from any position on either body, the other is always at the same position in the sky, or always obscured.
Credit: ESO/L. Calçada
Hair cells: the sound-sensing cells in the ear
These cells get their name from the hairlike structures that extend from them into the fluid-filled tube of the inner ear. When sound reaches the ear, the hairs bend and the cells convert this movement into signals that are relayed to the brain. When we pump up the music in our cars or join tens of thousands of cheering fans at a football stadium, the noise can make the hairs bend so far that they actually break, resulting in long-term hearing loss.
Henning Horn, Brian Burke and Colin Stewart, Institute of Medical Biology, Agency for Science, Technology, and Research, Singapore
RTD Era Meme | Outfits (7/7) | The Unicorn and the Wasp
Photoset reblogged from with 33,845 notes
I have a physics textbook from before the electron was discovered and they just sound so frustrated it’s hilarious
Entertainment Weekly Lord of the Rings Reunion
GET TO KNOW ME MEME → 10 female characters
↳ 3/10 Éowyn
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