Between 50 and 1,000 kilometers above our heads is the ionosphere, a layer of Earth's upper atmosphere consisting of charged particles: ions (atoms that have gained or lost a negatively charged ...

Residents frequently report seeing a line of lights moving across the night sky, often capturing photos and videos. These sightings spark the same question: What are these lights?Real-Life ...

At Expo 2025, the games are more than shiny distractions. They form a tight web of reward loops— little jolts of dopamine that pull visitors forward one point with their emotional impact, one badge at ...