Take a grand tour of the solar system tonight (Dec. 28) as each of the planets in the solar system will be visible at the same time.To celebrate this excellent skywatching opportunity, the Virtual Telescope Project is hosting a free "grand tour of the solar system (opens in new tab)" livestream starting at 12:30 p.m. EST (1730 GMT) on Wednesday (Dec. 28).We recommend the Celestron Astro Fi 102 (opens in new tab) as the top pick in our best beginner's telescope guideThe five planets visible with the naked eye — Venus, Mercury, Saturn, Jupiter and Mars, in that order — will line up in the sky starting from the southwestern horizon.Gianluca Masi, an astronomer with the Virtual Telescope Project, says while the occurrence of all other planets being visible isn't particularly rare, it does make for an impressive skywatching opportunity.If you want to take a look at the planets of the solar system and don't have all the gear you need, be sure not to miss our guides for the best binoculars and the best telescopes to view the planets or anything else in the sky."