Scientists at MIT and elsewhere say that the Antarctic ozone hole shows signs of shrinking. They say they expect it to close permanently by mid-century.
Hundreds of events - films, concerts, panels with engineers, scientists and astronauts - about asteroids and how to protect our planet from asteroid impacts.
The first map shows all the known asteroids within one-third of Earth's distance from the sun today - Asteroid Day - June 30, 2016. Look below for a second map.
Scientists aboard an aircraft caught the impressive streak and final breakup of the Orbital ATK Cygnus supply ship, as it re-entered Earth's atmosphere on June 22.
Global warming will cause more people to be exposed to the mosquito that carries Zika virus, says a new study. Why this mosquito is such a good virus-spreader.
On June 20, 2016, the moon turns full at 11:02 UTC. The solstice arrives some 11.5 hours later, at 22:34 UTC. Solstice moon photos here from the EarthSky community.