Six planets are lining up in a row from our Earthly view of the cosmos, in a spectacle that'll be visible in January through to February.

"In January, you'll have the opportunity to take in four bright planets in a sweeping view" said Preston Dyches of NASA's Jet Propulsion Laboratory in a video guide to January's night sky. "These multi-planet viewing opportunities aren't super rare, but they don't happen every year so it's worth checking out."