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The authors proceed to argue that inside Sun-like stars objects that satisfy the above conditions can exist. They also suggest that an indication on the existence of such "nuclear life" could be observed deviations from predictions of models of stellar evolution, such as anomalies in luminosity.
Science and non-science are often distinguished by the criterion of falsifiability. The criterion was first proposed by philosopher of science Karl Popper. To Popper, science does not rely on induction; instead, scientific investigations are inherently attempts to falsify existing theories through novel tests. If a single test fails, then the ...
Sun-like stars without planets have 10 times the lithium as Sun-like stars with planets in a sample of 500 stars. [ 17 ] [ 18 ] The Sun's surface layers have less than 1% the lithium of the original formation protosolar gas clouds despite the surface convective zone not being quite hot enough to burn lithium. [ 18 ]
What caused the Maunder Minimum and other grand minima, and how does the solar cycle recover from a minimum state? Coronal heating problem: Why is the Sun's corona so much hotter than the Sun's surface? Why is the magnetic reconnection effect many orders of magnitude faster than predicted by standard models? Space weather prediction:
The sun is acting a little sus Footage of a “massive polar vortex” recorded by NASA’s Solar Dynamics Observatory on Feb. 2, went viral this week, and scientists aren’t exactly sure what ...
This 180° hemisphere of stars rotates clockwise once every 24 hours around a point directly overhead. From any point on the equator, all of the stars visible anywhere on Earth on that day are visible at some time during the year as the sky rotates around a line drawn from due north to due south. When facing east, the stars visible from the ...
These fragments then form small, dense cores, which in turn collapse into stars. [35] The cores range in mass from a fraction to several times that of the Sun and are called protostellar (protosolar) nebulae. [2] They possess diameters of 0.01–0.1 pc (2,000–20,000 AU) and a particle number density of roughly 10,000 to 100,000 cm −3. [a ...
If you can answer 50 percent of these science trivia questions correctly, you may be a genius. The post 50 Science Trivia Questions People Always Get Wrong appeared first on Reader's Digest.