... Night and Day in Melas Chasma on Mars . ... In microlensing, the gravity of stars near the line of sight can act to magnify the light of background objects such as distant stars, or quasars. ... IC 418: The Spirograph Nebula . ... During a total solar eclipse, the Sun's extensive outer atmosphere or corona is an awesome and inspirational sight. ... Meteors Between Stars and Clouds . ... When the Moon's shadow reached out and touched the Earth last week, the result was a solar eclipse. ...