Dark matter
Concept in cosmology
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We include updates on Neutrino, Axion, Lambda-CDM model, Primordial black hole, Vera Rubin, Modified Newtonian dynamics, Weakly interacting massive particle, Sterile neutrino, Navarro–Frenk–White profile, Massive compact halo object, MACS J0416.1-2403, Bullet Cluster, Axino, X17 particle, Alpha Magnetic Spectrometer, Neutralino ... and more.
| 2025 |
Lambda-CDM model
The DESI Collaboration published observations suggesting that dark energy, traditionally considered a constant in the Lambda-CDM model, may be weakening over time, challenging the fundamental assumptions of the cosmological model.
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| 2025 |
Cryogenic Observatory for Signatures Seen in Next-Generation Underground Searches
COSINUS is scheduled to begin data recording at the end of 2025, utilizing cryogenic detectors with sodium iodide crystals to search for rare dark matter interactions.
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| 2025 |
Vera Rubin
Will be honored on a U.S. quarter as part of the American Women quarters program.
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| January 2025 |
ARRAKIHS
Spanish company Added Value Solutions (AVS) won a contract for the initial phases of the project, including preliminary spacecraft design and technology risk reduction.
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| January 2025 |
ARRAKIHS
Spanish company Added Value Solutions (AVS) and a Belgian subsidiary of Redwire won contracts for initial project phases, including preliminary spacecraft design and technology risk reduction.
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| 2024 |
Cryogenic Observatory for Signatures Seen in Next-Generation Underground Searches
COSINUS scientific collaboration was officially inaugurated in Spring 2024, marking the beginning of its dark matter detection research project at the Gran Sasso National Laboratory in Italy.
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| 2024 |
Primordial black hole
A review by Bernard Carr and colleagues concluded that primordial black holes formed in the quantum chromodynamics (QCD) epoch before 10–5 seconds after the Big Bang, resulting in a mass distribution with distinct bumps, most prominently around one solar mass.
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| 2024 |
Dwarf galaxy problem
Discoveries indicate that the number of satellite galaxies around the Milky Way might be around 500, challenging previous simulations that predicted fewer galaxies.
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| 2024 |
Dwarf galaxy problem
Construction of the Vera C. Rubin Observatory is completed, which is expected to conduct wide field surveys to help scientists better understand the dwarf galaxy problem through future sky observations.
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| 2024 |
Modified Newtonian dynamics
A study claimed that the universe's earliest galaxies formed and grew too rapidly to be explained by the Lambda-CDM model, but such rapid growth was predicted by MOND theory.
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| September 2024 |
Self-interacting dark matter
Another scientific study proposed that SIDM, along with fuzzy cold dark matter, could potentially resolve the 'final-parsec problem'.
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| September 2024 |
Self-interacting dark matter
A follow-up study proposed that both SIDM and fuzzy cold dark matter might provide a solution to the 'final-parsec problem'.
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| July 2024 |
Self-interacting dark matter
A scientific study was published proposing that self-interacting dark matter (SIDM) could solve the 'final-parsec problem' in astronomical research.
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| June 2 2024 |
Vera Rubin
Nvidia announced their next generation of data center accelerators would be named after her, with the CPU named Vera and GPU named Rubin.
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| April 2024 | Extensive cosmic ray dataset discussed at the APS April meeting, challenging existing theoretical models of the cosmos. |
| March 2024 |
ARRAKIHS
ESA published a call for the definition, development, and operation of the mission.
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| 2023 |
Sterile neutrino
CMS experiment set new limits for sterile neutrinos with masses of 2–3 GeV.
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| 2023 |
Fuzzy cold dark matter
New research revealed evidence suggesting ultralight axions (a form of fuzzy dark matter) may better explain gravitational lens data compared to WIMP dark matter models, potentially advancing understanding of dark matter composition.
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| 2023 |
Dark galaxy
Nube, a potential dark galaxy, was discovered through deep optical imagery analysis in the Stripe 82 region. This discovery is significant as Nube is classified as an 'almost dark galaxy' due to its extremely low surface brightness.
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| 2023 |
Modified Newtonian dynamics
A research study concluded that cold dark matter cannot adequately explain galactic rotation curves, while MOND provides a more comprehensive explanation.
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| 2023 |
Modified Newtonian dynamics
A study measured the acceleration of 26,615 wide binaries within 200 parsecs, demonstrating systematic deviations from Newtonian dynamics and conformity with MOND (AQUAL) predictions. The results remain disputed among researchers.
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| November 2023 |
ARRAKIHS
The ARRAKIHS consortium successfully passed the mission definition review of the project.
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| November 26 2023 |
Primordial black hole
First evidence of an overmassive black hole galaxy was reported, found in studies of UHZ1 using the Chandra X-ray Observatory and James Webb Space Telescope, demonstrating an alternative black hole formation method.
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| January 2023 |
Sterile neutrino
STEREO experiment published final results rejecting the hypothesis of a light sterile neutrino with a mass of around 1 eV.
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| 2022 | CERN Axion Solar Telescope (CAST) concludes its operational period after nearly two decades of research into solar axions and Axion-Like Particles. |
| 2022 |
Dwarf galaxy problem
Density profile studies suggested that dwarf galaxies have a constant-density core, which contradicts dark matter simulations that predicted lower baryon density.
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| 2022 |
Modified Newtonian dynamics
Kroupa et al. published a study of open star clusters, arguing that asymmetry in tidal tails and cluster lifetimes are inconsistent with Newtonian dynamics but consistent with MOND theory.
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| 2022 |
Modified Newtonian dynamics
A survey of dwarf galaxies from the Fornax Deep Survey (FDS) catalogue was published, with astronomers and physicists concluding that observed deformations of dwarf galaxies in the Fornax Cluster and the lack of low surface brightness dwarfs towards its centre are incompatible with ΛCDM expectations but consistent with MOND theory.
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| November 2022 |
DAMA/NaI
New results from COSINE-100 experiment after 1.7 years of data collection failed to replicate the signal originally reported by DAMA.
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| November 2022 |
ARRAKIHS
European Space Agency (ESA) selected ARRAKIHS as its second F-class mission.
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| October 2022 | Announced discovery of exoplanet MOA-2020-BLG-208Lb through microlensing survey |
| September 2022 |
Primordial black hole
Researchers proposed primordial black holes as a potential explanation for the unexpected very large early galaxies discovered by the James Webb Space Telescope (JWST).
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| August 2022 |
DAMA/NaI
COSINE-100 applied an analysis method similar to DAMA/LIBRA and found a similar annual modulation, suggesting the original DAMA signal could be a statistical artifact.
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| June 2022 |
Sterile neutrino
BEST experiment released papers observing a 20–24% deficit in germanium isotope production, suggesting a potential sterile neutrino explanation.
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| April 2022 | Announced discovery of exoplanet MOA-2020-BLG-135Lb through microlensing survey |
| January 2022 | In collaboration with Microlensing Observations in Astrophysics (MOA), OGLE reported the first solidly detected rogue black hole, using microlensing data to measure both light amplification and deflection. |
| January 2022 | In collaboration with the Optical Gravitational Lensing Experiment (OGLE), MOA reported the first solid detection of a rogue black hole, using microlensing techniques that allowed measurement of both light amplification and gravitational deflection. |
| 2021 | Discovery of OGLE-2019-BLG-0960Lb, another extremely small planetary body with 0.0071 Jupiter masses. |
| 2021 |
CERN Axion Solar Telescope
First results from the RADES detector were published, reporting no significant axion signal detected above the noise background during the 2018-2021 period.
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| 2021 |
Modified Newtonian dynamics
Unnamed researchers proposed a new relativistic model of MOND that is compatible with cosmic microwave background observations.
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| October 2021 |
Sterile neutrino
MicroBooNE experiment's first results showed no hints of sterile neutrinos, aligning with the Standard Model's three neutrino flavors.
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| October 2021 |
Sterile neutrino
Results from the MicroBooNE experiment showed no evidence of sterile neutrinos, contradicting the earlier MiniBooNE experiment findings.
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| September 2021 |
Primordial black hole
The NANOGrav collaboration announced detection of a low-frequency signal potentially associated with gravitational waves and primordial black holes.
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| June 2021 | Announced discovery of exoplanet MOA-2014-BLG-472Lb through microlensing survey |
| May 2021 |
DAMA/NaI
ANAIS dark matter direct detection experiment, after 3 years of data collection at the Canfranc Underground Laboratory in Spain, found no evidence of annual modulation in 112.5 kg of NaI(Tl) crystals, rendering their results incompatible with DAMA/NaI and DAMA/LIBRA.
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| 2020 | Detection of OGLE-2019-BLG-0551b, a very small planetary body with 0.0242 Jupiter masses. |
| 2020 | A measurement of a unique MOND (Modified Newtonian Dynamics) effect was recorded, offering another alternative explanation to dark matter. |
| 2020 |
Modified Newtonian dynamics
A group of astronomers analyzed data from the Spitzer Photometry and Accurate Rotation Curves (SPARC) sample and galaxy catalogs, finding statistically significant evidence of violations of the strong equivalence principle in weak gravitational fields near rotationally supported galaxies. Their findings were consistent with Modified Newtonian Dynamics (MOND) and inconsistent with the Lambda-CDM cosmological model.
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This contents of the box above is based on material from the Wikipedia articles CERN Axion Solar Telescope, Sterile neutrino, Microlensing Observations in Astrophysics, DAMA/NaI, ARRAKIHS, Dwarf galaxy problem, Mirror matter, Fuzzy cold dark matter, Vera Rubin, Cryogenic Observatory for Signatures Seen in Next-Generation Underground Searches, Alpha Magnetic Spectrometer, Modified Newtonian dynamics, Dark galaxy, Dark matter, Optical Gravitational Lensing Experiment, Lambda-CDM model, Self-interacting dark matter, Primordial black hole & International Axion Observatory, which are released under the Creative Commons Attribution-ShareAlike 4.0 International License.