Stars are formed by molecular gas and dust coalescing in space. These molecular gases are so dilute and cold that they are invisible to the human eye, but they do emit faint radio waves that can be observed by radio telescopes.
Astronomy
Mar 1, 2023
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33
For most of human history, the stars blazed in an otherwise dark night sky. But starting around the Industrial Revolution, as artificial light increasingly lit cities and towns at night, the stars began to disappear.
Astronomy
Feb 23, 2023
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32
Humans are naturally afraid of the dark. We sometimes imagine monsters under the bed and walk faster down unlit streets at night. To conquer our fears, we may leave a night light on to scare away the monsters and a light ...
Astronomy
Feb 10, 2023
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140
A research team, led by Professor Moeto Nagai and comprised of researchers from the Department of Mechanical Engineering and the Electronic Inspired Interdisciplinary Research Institute (EIIRIS), Toyohashi University of Technology, ...
Cell & Microbiology
Jan 30, 2023
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147
Light pollution is growing rapidly and in some places the number of stars visible to the naked eye in the night sky is being reduced by more than half in less than 20 years, according to a study released Thursday.
Astronomy
Jan 22, 2023
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36
A few years—or sometimes even just a few weeks—can be all it takes for a plant or animal to acquire "endangered species" status. For instance, when a new road is built through a forest, the chainsaws come out and a rare ...
Ecology
Jan 12, 2023
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18
Robots and autonomous cars will have eyes that see much more than the human eye is capable of, a review of the growing field of meta-optics has found.
Optics & Photonics
Dec 22, 2022
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253
A team of researchers at the University of Patras's, OCEANUS- Lab has found evidence suggesting that early human ancestors (extinct hominids) may have sailed across the Aegean Sea.
Mercury pollution is a global threat to human health, especially to unborn babies and young children. Exposure to methylmercury, a type that forms when mercury washes into lakes and streams, can harm children's brain development ...
Plants & Animals
Dec 19, 2022
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124
While these two images may look dazzlingly different, they are actually pictures of the same cosmic object: NGC 1850. Although the same Hubble instrument took both images, different filters with different assigned colors ...
Astronomy
Dec 9, 2022
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26
