There are unexplored regions of the universe—and there are also unexplored times. In fact, there's a nearly 400-million-year gap in our universe's history that we've never seen: a time before stars known as the Dark Ages. ...
Space Exploration
Sep 26, 2023
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85
Bio-sensors are biomolecular sensors that leverage or mimic the sophisticated molecular recognition capabilities of living organisms. They find widespread applications in fields such as health care, food, and the environment.
Optics & Photonics
Sep 26, 2023
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27
As an ultra-wideband microwave signal, amplitude shift keying (ASK) can be used in many applications, such as electronic warfare, wireless communications and modern radar systems. Initially, ASK microwave signals are generated ...
Optics & Photonics
Sep 26, 2023
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1
Solar eclipses can have a noticeable impact on the structure and dynamics of Earth's upper atmosphere—the ionosphere. This is primarily due to the sudden reduction in solar radiation reaching the Earth's atmosphere during ...
Planetary Sciences
Sep 26, 2023
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0
Under the muddy surface of the Chicago River, a bluegill swam miles upon miles, back and forth from one end of the river system to another.
Plants & Animals
Sep 25, 2023
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4
With the ability to map dozens of biomarkers at once, a new method could transform testing for conditions including heart disease and cancer.
Bio & Medicine
Sep 25, 2023
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50
Whether you love them or loathe them, we all depend on bugs. Insects help to pollinate three-quarters of the world's crop varieties, making them a treasured resource.
Plants & Animals
Sep 22, 2023
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1
NASA's Atmospheric Waves Experiment (AWE) has successfully completed critical space environment tests. Planned for launch to the International Space Station in November 2023, AWE will study atmospheric gravity waves in Earth's ...
Space Exploration
Sep 21, 2023
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8
Researchers have demonstrated a material for next generation dynamic windows, which would allow building occupants to switch their windows between three modes: transparent, or "normal" windows; windows that block infrared ...
Condensed Matter
Sep 21, 2023
2
56
NASA scientists are testing a technology that could more accurately measure water stored in snow as seen from a satellite in orbit.
Earth Sciences
Sep 21, 2023
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22
