Deep in the center of our galaxy, scientists believe a strange type of star may be quietly glowing—not from fusion like our Sun, but from the invisible fuel of dark matter.
These “dark dwarfs” could act like cosmic detectors, collecting heavy, elusive particles that heat them from the inside. If we find them—and especially if we spot one missing its lithium—it could finally point us toward what dark matter really is.
Dark dwarfs & dark matter basics
Cybersecurity researchers have shed light on a previously undocumented threat actor called NightEagle (aka APT-Q-95) that has been observed targeting Microsoft Exchange servers as a part of a zero-day exploit chain designed to target government, defense, and technology sectors in China.
According to QiAnXin’s RedDrip Team, the threat actor has been active since 2023 and has switched network infrastructure at an extremely fast rate. The findings were presented at CYDES 2025, the third edition of Malaysia’s National Cyber Defence & Security Exhibition and Conference held between July 1 and 3, 2025.
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Wang Wei and Deng Ziqing, the co-corresponding authors, determined that a shortage of this retinoic acid prevented mice from regenerating their ear pinna (the outer ear).
Researchers have demonstrated that a genetic switch for organ regeneration exists, after restoring damaged outer ears in mice.
This has ignited hope that similar switches might exist for other organs, even in humans.
The study conducted by the National Institute of Biological Sciences, Beijing, zeroes in on a crucial molecule: retinoic acid, a derivative of vitamin A.
