A strange shift in Earth's rotation is making our days milliseconds shorter — and scientists are racing to understand why.

Earth’s prevailing winds are fastest in the northern hemisphere winter, but slowest from June to August, so the summer months ...

“If we moved Earth Overshoot Day out six days every year continuously, we'd be down to less than one planet before 2050,” Wackernagel said. “But given the huge climate debt, we may have to ...

Earth could see the "shortest day in history" today, scientists have said. Just weeks ago, the planet experienced a day some 1.3 milliseconds shorter than normal - but since then, the Earth's ...

Until 2020, the shortest "length of day" ever recorded by atomic clocks was -1.05 ms, meaning that Earth completed one daily rotation in 1.05 milliseconds less than 86,400 seconds.

Until 2020, the shortest "length of day" ever recorded by atomic clocks was -1.05 ms, meaning that Earth completed one daily rotation in 1.05 milliseconds less than 86,400 seconds.

Though we sum up a day as 24 hours and a year as 365 days, Earth's rotational and orbital speeds aren't exactly consistent. Instead, both fluctuate, swayed by atmospheric drag, tidal forces ...

CNN’s Call to Earth Day 2025 embraces the powerful theme “Guard Your Green Space,” urging individuals, communities, and nations to take bold, collective action to protect the natural world ...