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Astronomers discover a new ultra-faint dwarf galaxy

An international team of astronomers reports the discovery of a new ultra-faint dwarf galaxy as part of the DECam Local Volume Exploration (DELVE) survey. The newly found galaxy, designated Pegasus IV, has an absolute magnitude ...

Using marinated eggs to demonstrate diffusion

Marinated, or pickled, eggs are enjoyed by cultures around the world. There are Pennsylvania Dutch red-beet pickled eggs, German-style ones with a heavy dose of mustard, and Asian recipes that use rice vinegar and soy sauce, ...

Study reveals the earliest record of angiosperms in North America

A new study by Prof. Wang Xin from the Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences (NIGPAS) reported a new angiosperm fruit, Dilcherifructus mexicana gen. et sp. nov, from the Middle Jurassic ...

Color-sorting metalenses boost imaging sensitivity

Researchers have shown that newly designed pixel-scale metasurface lenses—flat surfaces that use nanostructures to manipulate light—can be used to make imaging sensors that are roughly three times more sensitive than ...

How we see better by 'looking away'

When we fixate an object, its image does not appear at the place where photoreceptors are packed most densely. Instead, its position is shifted slightly nasally and upwards from the cellular peak. This is shown in a recent ...

New algorithms give digital images more realistic color

If you've ever tried to capture a sunset with your smartphone, you know that the colors don't always match what you see in real life. Researchers are coming closer to solving this problem with a new set of algorithms that ...

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