Sunrise silhouettes the world's largest telescope | Space photo of the day for Sept. 17, 2025

A recent study reveals that asteroid Ryugu may have once contained flowing water in its core, suggesting a more complex history than previously thought.

Editor’s Note: This discovery is significant as it enhances our understanding of asteroids and their formation, potentially impacting future space exploration and studies of planetary bodies.

Scientists have successfully measured the speed and direction of a newly formed black hole after a merger 2.4 billion light years away. This discovery sheds light on the dynamics of black hole formation and movement in the universe.

Editor’s Note: Understanding how black holes behave after their formation is crucial for astrophysics. This measurement not only enhances our knowledge of black holes but also provides insights into the fundamental processes that govern the universe.

Tonight, an astonishing 262 million birds are expected to embark on their fall migration, and BirdCast is here to help you track their journey. This massive movement of birds is not only a spectacular natural event but also highlights the importance of migration patterns in understanding environmental changes. By following these migrations, we can gain insights into the health of ecosystems and the impacts of climate change.

Ulrich Loening, a respected lecturer at Edinburgh University, has passed away at the age of 94. His work in botany and zoology, particularly in molecular biology, has left a lasting impact on the scientific community. Loening's deep passion for the natural world drove his research and contributions, highlighting the importance of understanding our environment. His legacy will inspire future generations of scientists.

On September 18, a potentially hazardous asteroid, comparable in size to the Washington Monument, will make a close flyby of Earth. This event is significant as it allows scientists and the public to observe and study the asteroid's trajectory and characteristics in real-time, enhancing our understanding of such celestial bodies and their potential impact on Earth.

This September, Egypt's White Desert became the backdrop for a stunning total lunar eclipse, known as the blood moon. Captured in breathtaking timelapse photos, the event not only showcases the beauty of nature but also highlights Egypt's unique landscapes. Such celestial events remind us of the wonders of our universe and the importance of preserving these natural sites for future generations.

A recent study has revealed that even short exposure to urban air pollution can trigger an inflammatory response in the placenta, which is concerning for maternal and fetal health. This research highlights the potential risks associated with air quality, emphasizing the need for better environmental policies to protect vulnerable populations, especially pregnant women and their babies.

The 2025 Audubon Photography Awards have showcased 18 stunning images that capture the beauty and diversity of birds. These photographs not only highlight the artistic talent of the photographers but also raise awareness about the importance of bird conservation. By celebrating these majestic creatures, the awards inspire a greater appreciation for wildlife and the need to protect their habitats.