Mercury, the closest planet to the Sun, completes an orbit – a year for the planet – in 88 days. Earth's year, of course, is 365 days, while at the upper end, Neptune takes a whopping 60,190 ...
For much of January and February, you have the chance to see six planets in our solar system after dark, although two — Uranus and Neptune — will be hard to see without a telescope or high-powered ...
"A parade of planets, also sometimes referred to as a planetary alignment, is when several planets in our solar system appear to line up in the sky from our perspective here on Earth," John Conafay, ...