Portal:Science
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Science is a strict systematic discipline that builds and organizes knowledge in the form of testable hypotheses and predictions about the world. Modern science is typically divided into three major branches: the natural sciences (e.g., physics, chemistry, and biology), which study the physical world; the social sciences (e.g., economics, psychology, and sociology), which study individuals and societies; and the formal sciences (e.g., logic, mathematics, and theoretical computer science), which study formal systems, governed by axioms and rules. There is disagreement whether the formal sciences are scientific disciplines, as they do not rely on empirical evidence. Applied sciences are disciplines that use scientific knowledge for practical purposes, such as in engineering and medicine. (Full article...)
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The universe is all of space and time and their contents. It comprises all of existence, any fundamental interaction, physical process and physical constant, and therefore all forms of energy and matter, and the structures they form, from sub-atomic particles to entire galactic filaments. Space and time, according to the prevailing cosmological theory of the Big Bang, emerged together 13.787±0.020 billion years ago, and the universe has been expanding ever since. Today the universe has expanded into an age and size that is physically only in parts observable as the observable universe, which is approximately 93 billion light-years in diameter at the present day, while the spatial size, if any, of the entire universe is unknown. (Full article...)
Did you know...
- ... that machine learning can be used to recognize rock fractures?
- ... that the best novel of American science fiction author Garrett Smith did not appear as a stand-alone book until over 60 years after his death?
- ... that Mary Clutter used her directorial position at the National Science Foundation to require scientific conferences to include women speakers when presenting research done by them?
- ... that a year after becoming the first woman president of the Canadian Political Science Association, Caroline Andrew moderated the first Canadian leaders' debate on women's issues?
- ... that The Lord of the Ice Garden, a Polish novel series mixing elements of fantasy and science fiction, has been compared to The Witcher?
- ... that pacifist Theodora Wilson Wilson's science fiction book The Last Weapon was banned by the British Government in 1917?
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Science News
- 15 July 2024 – Mare Tranquillitatis pit
- In the journal Nature Astronomy, American and Italian scientists announce the discovery of a lunar cave, approximately 250 miles (400 km) from the landing site of Apollo 11. (AP) (Nature Astronomy)
- 10 July 2024 –
- Researchers from Northwestern University Feinberg School of Medicine and Harvard Medical School publish a claim for the cause and curative path for the autoimmune disease systemic lupus erythematosus in the journal Nature. (Newsmax) (Nature)
- 3 July 2024 –
- Scientists announce the discovery of the world's oldest cave painting, depicting three people gathered around a large red pig, estimated to be at least 51,200 years old, in Leang Karampurang cave in the Maros-Pangkep region, South Sulawesi, Indonesia. (Al Jazeera)
- 20 June 2024 – 2024 in archosaur paleontology
- Researchers announce the discovery the Lokiceratops rangiformis, a dinosaur species named after the Norse god Loki, in North America. The findings are published in the journal PeerJ. (ABC News)
- 20 June 2024 –
- The International Union for Conservation of Nature announces that the Iberian lynx has been upgraded from endangered to vulnerable for the first time since 1986, after a 2023 census showed a population of 2,021 animals. (BBC News)
- 5 June 2024 –
- Russian cosmonaut Oleg Kononenko becomes the first human to spend 1,000 days in outer space. (AP)