Solar eclipse 2021: Rare event
The annular solar eclipse is a rare and mesmerising sight and you shouldn’t miss this astronomical event. According to NASA, annular solar eclipses appear every 18 months somewhere on Earth and they are visible only a few minutes, unlike lunar eclipses.
A total solar eclipse happens when the Moon passes between Earth and the sun and blocks the light of the Sun. But, when the Moon is too far from earth, it looks smaller and does not block the entire view of the Sun. This creates what looks like a ring around the Moon.
It is worth noting that only partial solar eclipses can be observed from the North and South Poles, as per NASA.
Eclipses helped discover Earth shape?
NASA says hundreds of years ago when people observed the Moon during an eclipse, they saw Earth’s shadow on the Moon and discovered that the Earth is round. “Even after all these years, scientists are still learning about the Moon from lunar eclipses, NASA said.