Because of the orientation and tilt of their orbits, the eight major planets of the Solar System can never come into perfect alignment. The last time they appeared even in the same part of the sky was over 1,000 years ago, in the year AD 949, and they won't manage it again until 6 May 2492.

What planet will align in 2021?

The closest conjunction of two planets for 2021 happens on August 19 at 04:10 UTC. Depending on where you live worldwide, Mercury and Mars will appear at their closest on the sky's dome at evening dusk on either August 18 or August 19.

What planets will align in 2022?

In 2022, there will be a conjunction of Mars and Saturn on April 5, 2022, and Jupiter and Venus on April 30, 2022, and conjunction of Mars and Jupiter on May 29, 2020.