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A view of a planetary nebula. Image used for representation only. Credit: NASA Dark matter, the unseen substance that makes up most of the universe’s matter, could play a more dramatic role than previously thought. A new study suggests that heavy dark matter particles trapped inside a dense star could accumulate at its core, collapse…
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Astronomers have been searching for a mysterious substance called “dark matter” since the 1930s. Most scientists still believe it exists, despite many fruitless decades. Now we propose a new theory of general relativity that may ultimately get rid of the need for dark matter, and perhaps get physicists to think in terms of things we…
Read More “New theory of general relativity casts doubt on dark matter” »
A composite image of the Bullet Cluster, formed after the collision of two large clusters of galaxies. Most of the matter in the clusters (blue) is clearly separate from the normal matter (pink), giving evidence that nearly all of the matter in the clusters is dark. | Photo Credit: NASA/CXC/CfA/M. Markevitch The general theory of…
Read More “Indirect evidence builds, yet the ‘dark’ universe remains murky” »
A multi-spectral view of Messier 74, a.k.a. the Phantom Galaxy, captured by the Hubble and the James Webb Space Telescopes. Galaxy rotation has long perplexed scientists. | Photo Credit: ESA/Webb, NASA & CSA, J. Lee One of the biggest mysteries in astrophysics today is that the forces in galaxies do not seem to add up….
Read More “With bad news from Cassini, is dark matter’s main rival theory dead?” »