The fall equinox is a significant event in any tipped planet's life. Seasons are caused by a planet's tilted axis. Those which orbit the sun standing nearly straight up and down with little to no ...

Earth has a number of mini-moons and quasi-moons. Mini-moons are objects that orbit our planet. But they make for fickle fans: They tend to swing around Earth for only a matter of months. One example ...

Roughly every 378 days, Saturn swings into opposition, appearing up to 30% brighter and staying visible from dusk until dawn. The night sky is full of quiet wonders, but once a year Saturn steps into ...

Every year, the moon, Earth's reliable celestial companion for 4.5 billion years, is getting 1.5 inches away. The distance to ...