Several new studies have confirmed the success of a NASA test mission to crash a spacecraft into an asteroid. The studies suggest the experiment was an important first step in learning how spacecraft might be able to protect Earth from asteroids or other space objects that might threaten the planet.
Years of protests about the dangers of light pollution have become a desperate SOS: the starry sky is fading around the world at a faster rate than expected, between almost 7% and 10%, higher than previous predictions based on satellite …
People around the world are seeing fewer and fewer stars in the night sky, owing to an increase in the night sky brightness due to light pollution, according to a study.