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

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

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

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 planets in order from the Sun are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. If you include the ...

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

Thanks to atomic clocks (and all the worldly forces that influence them), scientists know that Earth's rotation has begun to ...

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 ...