The text compares and contrasts solar and lunar eclipses. What is one difference between them? It is safe to look at a solar eclipse. It is not safe to look at a lunar eclipse. Solar eclipses happen every month. Lunar eclipses happen every year and a half. During a solar eclipse, you cannot see the sunset. During a lunar eclipse, you can see sunset. During a solar eclipse, it's dark in daytime. During a lunar eclipse, the moon looks reddish or fades away.