Report: 2020 Record Year for Discovering Asteroids

A new report says 2020 was a record year for discovering new asteroids, particularly those with near-Earth orbits in spite of the COVID-19 pandemic shutting down a number of...

Light pollution’s wasted energy seen from space

The city of Tucson, in Arizona, US, dimmed its 14,000 streetlights over that period. "We used a satellite to measure what fraction of the total light emissions are due to...