A planetary alignment, sometimes called a 'planetary parade,' occurs when several planets gather closely on one side of the Sun, making them appear near each other in the sky from Earth's perspective. This phenomenon happens because the planets orbit the Sun on roughly the same plane, known as the ecliptic. The upcoming alignment involves seven planets. - Seven planets, including Mercury, Venus, Mars, Jupiter, Saturn, Uranus and Neptune, will align in the sky on February 28, 2025. - This rare planetary alignment is a celestial event that won't be visible again until 2040. - The alignment is visible because the planets orbit the sun on a similar plane, causing them to appear clustered together in the sky. - The new moon on the same day will provide a dark backdrop for viewing the planets.