An artist’s impression of the cosmic web (Volker Springel/Max Planck Institute for Astrophysics/et al) Topics: Astronomy, Astrophysics, Cosmology, Dark Matter, Einstein, Research Q: Why does science seem to always change its mind? A: Because, the enterprise of science is about discovery, and a lot of discoveries happen when you have better instrumentation, apply The ScientificContinue reading “Dark or Lumpy…”
Category Archives: Dark Matter
Black Holes and Dark Matter…
Artist’s impression of a microlensing event caused by a black hole observed from Earth toward the Large Magellanic Cloud. The light of a background star located in the LMC is bent by a putative primordial black hole (lens) in the Galactic halo and magnified when observed from the Earth. Microlensing causes very characteristic variation ofContinue reading “Black Holes and Dark Matter…”
Dark Matter, Ordinary Matter…
Topics: Astronomy, Astrophysics, Dark Matter, Research, Theoretical Physics Dark matter, composed of particles that do not reflect, emit, or absorb light, is predicted to make up most of the matter in the universe. However, its lack of interactions with light prevents its direct detection using conventional experimental methods. Physicists have been trying to devise alternativeContinue reading “Dark Matter, Ordinary Matter…”
ALPS and Dark Matter…
Magnet row of the ALPS experiment in the HERA tunnel: In this part of the magnets, intense laser light is reflected back and forth, from which axions are supposed to form. Credit: DESY, Marta Maye Topics: Dark Matter, Materials Science, Particle Physics, Quantum Mechanics The ALPS (Any Light Particle Search) experiment, which stretches a totalContinue reading “ALPS and Dark Matter…”
Einstein Rings…
Multiple images of a background image created by gravitational lensing can be seen in the system HS 0810+2554. Credit: Hubble Space Telescope / NASA / ESA Topics: Astronomy, Astrophysics, Dark Matter, Einstein, General Relativity Physicists believe most of the matter in the universe is made up of an invisible substance that we only know aboutContinue reading “Einstein Rings…”
Modified Gravity…
Rotation curve of the typical spiral galaxy M 33 (yellow and blue points with error bars) and the predicted one from the distribution of the visible matter (white line). The discrepancy between the two curves is accounted for by adding a dark matter halo surrounding the galaxy. Credit: Wikipedia Topics: Astronomy, Astrophysics, Cosmology, Dark MatterContinue reading “Modified Gravity…”
FASER, Neutrinos, and Dark Matter…
Topics: CERN, Dark Matter, High Energy Physics, Neutrinos, Particle Physics Neutrinos are ubiquitous and notorious. Billions are passing through you at this moment. Occasionally described as a “ghost of a particle,” neutrinos are nearly massless, thereby making them extremely difficult to detect experimentally (“Neutrino,” meaning “little neutral one” in Italian, was first used by Enrico FermiContinue reading “FASER, Neutrinos, and Dark Matter…”
Clocking Dark Matter…
Topics: Dark Matter, Modern Physics, Quantum Mechanics An optical clock has been used to set new constraints on a proposed theory of dark matter. Researchers including Jun Ye at JILA at the University of Colorado, Boulder, and Andrei Derevianko at the University of Nevada, Reno, explored how the coupling between regular matter and “ultralight” dark matter particles could beContinue reading “Clocking Dark Matter…”
Physics and Nano 