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6月20日,华南师范大学官网“现任领导”栏更新显示:王恒胤任华南师范大学党委书记。此前,王恒胤任广东省司法厅党委委员、省纪委监委驻省司法厅纪检监察组组长。 - 王恒胤 - 王恒胤,男,中共党员,研究生,硕士,副教授,现任华南师范大学党委书记。曾任广东省司法厅党委委员、省纪委监委驻省司法厅纪检监察组组长。 先后在中国人民大学法律系经济法专业、清华大学公共管理学院公共管理专业获法学学士、管理学硕士学位。1990年7月起,先后在茂名市政府法制局、茂名市委办公室工作,历任副科长、科长、办公室副主任(期间1999年至2000年兼任茂名市“三讲”教育办公室副主任);2001年5月起任中共茂名市委副秘书长;2005年3月起任茂名学院(后更名为广东石油化工学院)党委副书记;2018年8月起任岭南师范学院党委副书记、纪委书记。
Sunlovers rejoice, for the summer solstice is upon us, bringing the longest day of 2025 while heralding the beginning of astronomical summer in the northern hemisphere. The summer solstice occurs because of a 23.5 degree tilt in Earth's rotational axis that may have arisen when an ancient Mars-sized body slammed into our planet billions of years ago, triggering the formation of our moon. The angle of this tilt is — to all intents and purposes — consistent all year round, and is currently fixed with the north celestial pole pointing close to Polaris, the current north star. Thanks to this tilt, we experience the changing seasons, equinoxes and solstices — events that have been celebrated by cultures around the world for thousands of years. Some of humanity's most iconic ancient monuments like Stonehenge and the Mayan Chichén Itzá Pyramid were purpose built to align with these seasonal markers. In the northern hemisphere the summer solstice occurs when the sun reaches its northernmost point relative to Earth's celestial equator (which is simply our planet’s regular equator projected out into space). Conversely, the winter solstice takes place when the sun is in its southernmost position relative to the celestial equator. The 2025 summer solstice arrives at 10:42 p.m. EDT on June 20 (0242 GMT June 21). On this day, skywatchers across the northern hemisphere will enjoy the longest stretch of daylight all year. In New York, for example, the sun will spend more than 15 hours beating a path through the sky. At the same time, those in the southern hemisphere will mark the winter solstice, which heralds the shortest day of 2025 below the equator. You can calculate exactly how much daylight you will experience in the days around the summer and winter solstices online using TimeandDate.com's daylight tracker. Naturally this amount of sunlight makes it a challenging time of year for amateur astronomers, but that doesn't mean that the summer months aren't bursting with deep space targets and beautiful asterisms. Be sure to check out our daily guide to June's night sky to discover which targets to prioritize during those short summer nights. Editor's Note: If you find a creative way to capture the Summer Solstice and want to share it with Space.com's readers, then please send your photo(s), comments, and your name and location to spacephotos@space.com.
The crew members of Axiom-4 are stuck in a holding pattern inside their astronaut quarantine, as a leak persists in of of the space station's Russian modules. Houston-based Axiom Space was set to launch its fourth astronaut mission (Ax-4) with SpaceX last week, but the mission is being postponed again due to an air leak detected in Russia's Zvezda module of the International Space Station (ISS). The mission was originally slated for June 11, and has been pushed down the calendar three times now, due to the issues aboard the ISS. The leak in Zvezda isn't new, but a recent pressure change within the module is prompting NASA and Axiom to hold off on the Ax-4 launch until they are sure it poses no danger to the incoming crew. "Following the most-recent repair, pressure in the transfer tunnel has been stable. Previously, pressure in this area would have dropped. This could indicate the small leaks have been sealed," NASA wrote in a June 14 update. Now, the Ax-4 mission has been delayed indefinitely, while NASA continues evaluating the situation up in low-Earth orbit. "Because of the space station's interconnected and interdependent systems, NASA wants to ensure the station is ready for additional crew members, and the agency is taking the time necessary to review data," NASA said in an update yesterday (June 19). "NASA, Axiom Space, and SpaceX appreciate the historic nature of this mission for the nations of India, Poland, and Hungary, as well as the world," NASA added in the post. Ax-4 is commanded by Axiom's director of human spaceflight and former NASA astronaut Peggy Whitson. Joining her are Shubhanshu Shukla of India, Sławosz Uznański-Wiśniewski from Poland, and Tibor Kapu, from Hungary. The three will be the first astronauts from each of their nations to launch on a mission to the ISS. The quartet will launch on a SpaceX Falcon 9 rocket, aboard a brand-new Crew Dragon spacecraft. When the new launch date is announced, the mission will liftoff from Launch Complex-39A, at NASA's Kennedy Space Center, in Florida. Their mission is scheduled to last about two weeks, during which the Ax-4 crew will carry out more than 60 research experiments and STEM (science, technology, engineering and math) outreach events — a record number of science for an Axiom mission. Each of Axiom's crewed missions grow the company's experience in orbit, and their understanding of how best to operate in microgravity. In the future, Axiom plans to launch its own module to the ISS, which will eventually grow in its components and undock from the orbital lab to become its own independent space station.
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