India, April 19 -- Sky watchers across the world will get a rare opportunity in April 2026 as Mercury, Mars, Saturn, and Neptune align in the early morning sky. This rare four-planet parade will appear just before sunrise and will remain visible for about a week, offering a short but stunning window for observation.

Astronomers say the planets will appear along the Sun's path, creating a shifting diagonal pattern in the sky. The best viewing period runs from April 16 to April 23, with changing formations each morning depending on weather and location.

During the peak days, the planets will appear closer together in a triangular shape before stretching into a diagonal line as the week progresses. Observers will need a clear eastern ...