Australia Detects Asteroid Impact, Yet Crater Remains Elusive
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Orionid Meteor Shower 2025: Your Guide to Catching the Spectacular Shooting Stars
The Orionid meteor shower is set to light up the night sky in 2025, offering skywatchers a spectacular display of “shooting stars.” These meteors are tiny fragments of Halley’s Comet, streaking across Earth’s atmosphere as the planet passes through the comet’s dust trail. From early October to mid-November, observers can catch glimpses of bright, colorful streaks that seem to dance across the heavens. The meteor shower is expected to reach its peak on the night of October 21 and continue into the early hours of October 22, providing the perfect opportunity for a memorable celestial show. Devamını Oku
NASA Partners with Joby Aviation to Analyze Wind Impacts and Enhance Aircraft Tracking
In March, NASA engineers launched a new data-gathering campaign aimed at improving the safety and performance of emerging air taxi technology. Using a network of advanced ground sensors, the team monitored an experimental Joby Aviation aircraft as it flew over terrain near NASA’s Armstrong Flight Research Center in Edwards, California. The campaign focused on analyzing how air taxis behave in varied weather conditions, particularly in urban environments. The collected data will help refine collision avoidance systems, landing protocols, and overall air taxi operations in real-world scenarios.
The collaboration centers around the Joby Aviation demonstrator, an electric vertical takeoff and landing (eVTOL) aircraft equipped with six rotors that enable both vertical lift and efficient forward flight. Traditionally, NASA has studied how environmental wind patterns influenced aircraft near the ground, especially in areas with uneven terrain. However, in this test, the wind in question is being generated by the aircraft itself—specifically, the turbulent circular airflow created by its propellers during takeoff and landing.
This turbulent airflow, especially during low-altitude operations, can affect not just the aircraft’s stability but also nearby vehicles and people on the ground. To analyze these effects in detail, NASA has enhanced its sensor systems by integrating a newly developed lidar unit capable of detecting fine-scale wind disturbances. According to Grady Koch, the project lead from NASA’s Langley Research Center, the pairing of Joby’s aircraft design with NASA’s lidar technology offers an unprecedented look at how wind and turbulence may influence the safety and efficiency of next-generation flight.
To further support this initiative, NASA has deployed a second sensor array featuring radar, cameras, and acoustic sensors. This setup is designed to collect detailed tracking and environmental data during repeated routine flights over the coming months. By combining airflow analysis with high-resolution tracking, NASA aims to build a comprehensive picture of how eVTOL aircraft interact with their environment—ultimately paving the way for safe and scalable urban air mobility solutions.