An article from Science News Feb 2021
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An article from Science News Feb 2021
The first black hole ever discovered is more massive than previously thought
An article from Science News Feb 2021
Some Neandertal genes in people today may protect against severe COVID-19
An article from Science News Feb 2021
The Milky Way’s newfound high-energy glow hints at the secrets of cosmic rays
An article from Science News Jan 2021
Astronomers spotted a rare galaxy shutting down star formation
Biography
Abetti, Giorgio (1882–1982)
Article
Abscisic acid
A major plant hormone that plays an important role in plant growth and development. Abscisic acid (ABA), with a chemical formula of C15H20O4 (Fig. 1), is one of the most significant hormones found in plants. It is responsible for regulating various…
Biography
Adams, John Couch (1819–1892)
Biography
Adams, Walter Sydney (1876–1956)
Article
Addiction and addictive disorders
Habituation to a specific practice, such as drinking alcoholic beverages or using drugs (for example, heroin, cocaine, or amphetamines), and disorders characterized by the chronic use of a drug, alcohol, or similar substance. Addiction and addictive…