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

Almost two-thirds of the world's population is affected by the monsoon—the annual arrival of intense rains in areas north and ...

For one, scientists observe a "cosmic fossil" called the cosmic microwave background (CMB). The first light that was free to ...

During the Northern Hemisphere’s summer solstice, the upper half of the earth is tilted toward the sun, creating the longest day and shortest night of the year. This solstice falls between June 20 and ...

This is because a person standing at the equator is not stationary. They’re moving in a circular path as the Earth rotates. When an object moves in a circle, it has an acceleration toward the ...

The East Asian monsoon north of the equator is the best known and best studied, because it affects the largest land area and the most people.

Conversely, the winter solstice takes place when the sun is in its southernmost position relative to the celestial equator. The summer solstice marks the longest day of the year.

Earth is spinning faster, making July 9, 2025, one of the shortest day since 1960 by 1.3 to 1.6 milliseconds, primarily due to the Moon's alignment. While imperceptible in daily life, this speedup may ...

The molten rock was hot enough to melt the surrounding rocks and release massive amounts of carbon dioxide into Earth's ...