Planets orbit the Sun in roughly circular paths, and moons orbit around planets. Asteroids and comets move in paths which are more oval in shape. The Sun’s gravity holds all of these objects ...

However, it was not until Kepler's observations that the planets followed elliptical orbits around ... zero-obliquity in a highly eccentric orbit around a sun-like star may have enhanced land ...

Here’s a little spoiler for next month’s Cosmic Calendar: early May will see the return of the Eta Aquarid meteor shower. The ...

a fascinating astronomical event when Earth comes to a point closest to the Sun in its elliptical orbit. While you won't witness a dramatic shift in our planet's environment however it is a day to ...