A red-yellow airglow blankets Earth's horizon above the Philippine Sea

iss073e0824860 (Sept. 14, 2025) --- A red-yellow airglow blankets Earth's horizon above the tranquil, moonlit Philippine Sea in this photograph taken from the International Space Station at approximately 1:49 a.m. local time while orbiting 261 miles above Earth. This type of airglow is caused by chemical reactions in the upper atmosphere, often involving oxygen and hydroxyl molecules, and is typically visible in long-exposure imagery taken from orbit.