A Doppler shift is defined as a change of frequency of light or sound when an object is moving toward or away from an observer. Edwin Hubble observed in 1929 that galaxies appear on average to be moving away from us (see ...
New research into the use of the drug poppers (alkyl nitrites) has highlighted inconsistencies in proposed changes to drug policy in the UK and how exemptions to the law impact on minority groups.
Social Sciences
Sep 23, 2024
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Scientists have shown that light pollution—especially light in the blue spectrum—can alter the behavior of fish after only a few nights, and have knock-on effects for their offspring. The team from China has studied how ...
Plants & Animals
Sep 23, 2024
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About one-third of mothers in California were reported to the Child Protection System (CPS) at least once, but the percentage significantly increased as the number of children grew, finds a new analysis from the Brown School ...
Social Sciences
Sep 23, 2024
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Solar flares are a fascinating thing and have a profound effect on what astronomers refer to as "space weather." These events vary with the sun's 11-year solar cycle, releasing immense amounts of radiation across the electromagnetic ...
Astronomy
Sep 23, 2024
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An unexpected finding about how our universe formed is again raising the question: do we need new physics? The answer could fundamentally change what physics students are taught in classes around the world.
General Physics
Sep 23, 2024
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Earth's average global temperatures have been steadily increasing since the Industrial Revolution. According to the National Oceanic and Atmospheric Agency (NOAA), Earth has been heating up at a rate of 0.06°C (0.11°F) ...
Astrobiology
Sep 23, 2024
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Although most potentially habitable worlds orbit red dwarf stars, we know larger and brighter stars can harbor life. One yellow dwarf star, for example, is known to have a planet teaming with life, perhaps even intelligent ...
Astrobiology
Sep 23, 2024
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A Soyuz capsule carrying two Russians and one American from the International Space Station landed Monday in Kazakhstan, ending a record-breaking stay for the Russian pair.
Space Exploration
Sep 23, 2024
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How can a teacher discuss Jim Crow laws without breaking state law? Should a librarian stop ordering books with LGBTQ+ characters? A new white paper by UC San Diego and NYU researchers reveals the experiences of K-12 educators ...
Education
Sep 23, 2024
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