College of Natural & Agricultural Sciences

SCI.NEWS - “Since its discovery in 2016, there have been many attempts to reproduce Crater II’s unusual properties, but it has proved very challenging,” said University of California, Riverside’s Professor Hai-Bo Yu. Dark matter makes up 85% of the Universe’s matter, and it can form a spherical structure under the influence of gravity called a...

SPACE.COM - A fresh analysis of a remarkably massive yet compact galaxy from the early universe suggests that dark matter interacts with itself. The galaxy, JWST-ER1, which formed just 3.4 billion years after the Big Bang, was first spotted last October in images snapped by NASA's James Webb Space Telescope (JWST). At over 17 billion...

EARTH.COM - A team of researchers led by Hai-Bo Yu, a professor of physics and astronomy at the University of California, Riverside, has shed new light on the enigmatic nature of dark matter through the lens of an ancient galaxy. The study focuses on JWST-ER1g, a massive ancient galaxy discovered by the James Webb Space...

ASTRONOMY - Maybe dark matter talks to itself, according to a new proposal, and that might just explain two cosmological mysteries at once. Dark matter is the name astronomers give to the mysterious substance that makes up the bulk of all matter in the universe. Upwards of 80 percent of the mass of a galaxy...