Portal:Science
Science portal
Science is a rigorous, systematic endeavor that builds and organizes knowledge in the form of testable explanations 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 science 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 Carl Freedman viewed science fiction as the most sound genre for academic study?
- ... that Research Policy is regarded as the leading journal in the field of innovation studies?
- ... that the Springfield Science Museum is home to the oldest operating projection planetarium in the United States?
- ... that characters from several different science fiction media appear as an Easter egg in the episode "Babylon's Ashes"?
- ... that science fiction authors who want to avoid the paradoxes associated with time travel may instead write about time viewers?
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Science News
- 17 May 2024 –
- Scientists using the James Webb Space Telescope discover the earliest known merging of black holes, 740 million years after the Big Bang. (AP)
- 15 May 2024 – Discoveries of exoplanets
- Scientists announce the discovery of SPECULOOS-3 b, an Earth-size exoplanet that orbits a red dwarf star that has a similar size as Jupiter. (Space.com)
- 8 May 2024 –
- Researchers at Google DeepMind announce the development of AlphaFold 3, an AI model that can predict the structures of almost all biological molecules and model the interactions between them. (Time) (Nature)
- 17 April 2024 –
- Scientists announce that they have identified fossil remains of the Ichthyotitan, the largest marine reptile currently known, in the Westbury Formation in England. (NOS)
- 16 April 2024 –
- European Space Agency scientists announce the discovery of Gaia BH3, the second-largest known black hole in the Milky Way. (NOS) (ESA)
- 4 April 2024 – 2020–2024 H5N1 outbreak
- Scientists from the Federation University Australia report that thousands of Adélie penguins have been found dead in Antarctica amid an increase in bird flu cases among wild bird populations. (Reuters)