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Earth News 8 June 2025 - 16 September 2025

Skyscraper-Size Asteroid Once Feared to Hit Earth Zooms Past This Week – How to Watch Live

Skyscraper-Size Asteroid Once Feared to Hit Earth Zooms Past This Week – How to Watch Live

An asteroid the size of a skyscraper, once briefly feared to pose an impact risk decades from now, is about to make a close (but safe) flyby of Earth on Thursday, September 18, 2025. This near-Earth asteroid, officially designated 2025 FA22, will whiz by at ~24,000 mph in the early hours of Thursday, coming within about 520,000 miles (835,000 km) of our planet – roughly 2.2 times the distance of the Moon livescience.com. Discovered only in March 2025, the giant space rock made headlines when initial calculations suggested a slim chance of an Earth impact in the year 2089, briefly
16 September 2025
Space-Weather Satellites: Earth’s Cosmic Early Warning System

Space-Weather Satellites: Earth’s Cosmic Early Warning System

SOHO (Solar and Heliospheric Observatory), launched in 1995, became the first satellite to continuously observe the Sun from the Sun–Earth L1 point and carries the LASCO coronagraph, enabling CME tracking and the discovery of more than 5,000 comets. ACE (Advanced Composition Explorer), launched in 1997, and NOAA’s DSCOVR (Deep Space Climate Observatory), launched in 2015, sit at the Sun–Earth L1 to sample the solar wind and provide roughly 15 minutes to 60 minutes of advance warning of approaching CMEs. STEREO, launched in 2006, consists of two spacecraft, STEREO-A ahead of Earth and STEREO-B behind, providing stereoscopic views of solar activity;
8 June 2025
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