Laboratory experiments are controlled empirical methods conducted in artificial or semi-artificial settings to isolate, manipulate, and measure specific variables under reproducible conditions. They typically involve systematic variation of one or more independent variables while holding extraneous factors constant, enabling causal inference about their effects on dependent variables. Experimental designs may include control groups, randomization, blinding, and standardized protocols to minimize bias and confounding. Laboratory experiments are widely used across natural and social sciences to test hypotheses, validate theoretical models, calibrate instruments, and generate high-precision data, often serving as a precursor to field studies or in vivo applications where environmental control is more limited.
America's bees and beekeepers are losing a valuable ally just when they need its help most. The U.S. Department of Agriculture plans to soon close the Beltsville Agricultural Research Center, a 6,500-acre agricultural research ...
Ecology
May 26, 2026
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Scientific discovery is often portrayed as the result of long hours alone in a lab, but true science is inherently collaborative. The most robust experimental processes are developed through partnerships across multiple areas ...
Biotechnology
May 22, 2026
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When people eventually head to the moon for long-term exploration and habitation, they'll need equipment and spacesuits made of well-tested materials. That's where NASA's Lunar Environment Test Rig (LESTR) comes in handy. ...
Space Exploration
May 21, 2026
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Suppose there are signs of extraterrestrial life and we have not yet been able to detect them. What does that mean? In Nature Astronomy, researchers discuss the consequences of these so-called false-negative results. "We ...
Astrobiology
May 21, 2026
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In a lot behind a disused West Virginia gas station at the foot of the Appalachian Mountains, Roy Funkhouser is surrounded by about a dozen beekeepers and countless buzzing bees.
Ecology
May 19, 2026
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For many undergraduate students, exploring the complexities of physics for the first time, from wading through advanced mathematics, to absorbing information in a large lecture format, can be a daunting endeavor—one that ...
General Physics
May 18, 2026
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More than a decade after the Nagoya Protocol, which aims to fairly share the benefits of utilizing genetic resources, became law, microbiologists and other scientists still face practical challenges and confusion. A new guide ...
Cell & Microbiology
May 13, 2026
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Protein language models are artificial intelligence tools which help engineer proteins with useful properties, including completely new structures never seen before in nature.
Biotechnology
May 11, 2026
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The intrinsic information-seeking impulse we call curiosity is independent of extrinsic rewards, such as food or mating opportunities. Curiosity is purely the pursuit of understanding the unknown, driving both humans and ...
Plants & Animals
May 7, 2026
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15
A new autonomous laboratory recently navigated through billions of potential material synthesis recipes to identify brighter, lead-free light-emitting nanomaterials in just 12 hours. The work could accelerate development ...
Nanomaterials
May 4, 2026
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