'We must replace this capability now': New NOAA satellite to replace aging space weather sentinels launches Sept. 23

The autumn equinox marks the official start of fall in the Northern Hemisphere, occurring on September 22, 2025, when the sun crosses the equator. This astronomical event is significant as it signifies a change in seasons, impacting weather patterns and daylight hours. Understanding the equinox helps us appreciate the natural rhythms of our planet.

In a remarkable display of modern technology, a Girl Scout injured in a remote California canyon received timely help thanks to satellite-enabled communication and precise location identification. This swift response highlights the critical role of satellites in emergency situations, transforming what could have been a lengthy rescue operation into a matter of minutes. It's a powerful reminder of how innovation can save lives and improve safety in challenging environments.

This week in science news, we explore the discovery of the world's oldest mummy and an intriguing ant species that mates with clones of a distant relative. These findings not only shed light on ancient civilizations but also challenge our understanding of reproduction in the animal kingdom. Such discoveries are essential as they expand our knowledge of biodiversity and evolutionary processes, making them significant for both researchers and enthusiasts alike.

A significant milestone has been reached as sixty states have ratified a global treaty aimed at protecting the oceans, which will officially come into force in January. This treaty is crucial for marine conservation and reflects a growing international commitment to safeguarding our oceans, highlighting the importance of collaborative efforts in addressing environmental challenges.

The CDC's Advisory Committee on Immunization Practices has recently updated its recommendations regarding eligibility for this year's COVID-19 vaccines. This is important as it helps clarify who can receive the updated vaccines, ensuring that those most at risk are protected. Staying informed about these changes is crucial for public health and safety.

The recent decision by Kennedy's vaccine panel to limit access to COVID shots has raised concerns among public health advocates. This move could hinder efforts to achieve widespread vaccination, which is crucial for controlling the pandemic. As COVID-19 continues to pose a threat, limiting access to vaccines may lead to increased infections and complications, making this decision significant for public health.

A recent survey reveals that a quarter of UK university physics departments are at risk of closure due to funding pressures, with four out of five departments already making staff cuts. This alarming trend raises concerns about the future of physics education in the UK and its implications for the country's leadership in scientific research and innovation. The Institute of Physics highlights the urgency of addressing these challenges to ensure the sustainability of physics as a vital field of study.

Exciting news for space enthusiasts! NASA's VIPER moon rover, which was thought to be shelved, is set to be launched by Blue Origin in 2027. This mission aims to hunt for ice on the moon, which could be crucial for future lunar exploration and even for potential human colonization. The collaboration between NASA and Jeff Bezos' company highlights a significant step forward in our quest to understand the moon's resources and pave the way for deeper space missions.