Dark Matter

Researchers in Finland have measured an energy signal smaller than one zeptojoule using a new calorimeter. The achievement opens pathways for improved quantum computing and searches for dark matter.

May 19, 2026 由 AI 报道

Physicists have found a potential signature of dark matter in data from a black hole merger observed in 2019. The signal known as GW190728 showed patterns consistent with the invisible substance interacting with the colliding objects. A new model developed by researchers at MIT and partner institutions made the analysis possible.

Astronomers using NASA's Hubble Space Telescope have identified a faint galaxy called CDG-2, located 300 million light-years away in the Perseus cluster, that consists almost entirely of dark matter. The discovery relied on detecting four globular clusters rather than the galaxy's dim stars. This finding highlights the role of dark matter in low-surface-brightness galaxies.

February 19, 2026 由 AI 报道

A team of researchers proposes that the supermassive black hole at the center of the Milky Way, known as Sagittarius A*, could actually be a dense clump of dark matter rather than a traditional black hole. Their model, based on fermionic dark matter particles, matches observations of stellar orbits and the 2022 Event Horizon Telescope image. However, many experts remain skeptical, favoring the black hole explanation.