Is Earth's inner core solid or liquid? While the inner core is extremely hot, experts have known that it is solid for many ...

Scientists have revealed exactly when the next shortest days will occur as Earth's rotation speeds up once again.

July 9, 2025, saw the Earth spin through one of its shortest days on record a fleeting, nanosecond instant that passed ...

I n February 2025, a group of geophysicists published a study that suggests changes are underway in the Earth's inner core. Already in 2023, we learned that the rotational direction of our planet's ...

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

The Earth is predicted to make its fastest rotations on July 9, July 10, July 22 and August 5, according to a Time and Date ...

On July 9, 2025, scientists at the International Earth Rotation and Reference Systems Service (IERS) reported that the Earth ...

While it’s unlikely anyone would notice a missing millisecond, there’s potential this speed-up could have ramifications for ...

Neptune is called an “ice giant” because it’s mostly made of a thick, slushy mix of water, methane, and ammonia, which ...