The planet’s rotation fluctuates as it travels around the sun, and measurements suggest we’re losing more than a millisecond ...

July 9 was unusually short thanks to changes in how fast the Earth is spinning. But two other days this summer are expected to be even shorter.

Environmental activists wearing clothes made from plastic waste perform during a campaign event to mark the international Earth Day in Seoul on April 22, 2024. (Photo by Jung Yeon-je / AFP) (Photo ...

As the events expanded into a nationwide campaign, the first Earth Day was held on April 22, 1970. The initial movement in 1970 is known as the largest secular day of protest in the world.

Nation World Why Earth Day is on April 22 The initial movement in 1970 is known as the largest secular day of protest in the world.

Nation World Why Earth Day is on April 22 The initial movement in 1970 is known as the largest secular day of protest in the world.