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College of Natural & Agricultural Sciences

Astrophysicists offer explanation for origin of one of Milky Way’s largest satellites

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...
By Staff | Sci.News |

Exotic 'Einstein ring' suggests that mysterious dark matter interacts with itself

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...

By Sharmila Kuthunur | SPACE.COM |

Dark matter and Einstein rings solve ancient galaxy mystery

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...
By Eric Ralls | Earth.com |

Dark matter might keep itself company, and that helps solve 2 cosmic puzzles

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...
By Paul Sutter | Astronomy |
Dr. Haibo Yu

Grant awarded to physicist to explore the dark sector

The John Templeton Foundation has supported research on a diverse range of subjects including creativity, forgiveness, and free will. Dark matter — nonluminous material in space that is understood to constitute 85 percent of the matter in the universe — can now be added to the list. The foundation has awarded UC Riverside physicist Hai-Bo...
By Iqbal Pittalwala | Inside UCR |
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