A fascinating phenomenon touches the earth: “no one expected it”

Exceptionally short days – Fascinating phenomenon touches earth: "no

Yes but … For example, other factors that the land-moon attraction come into play. Therefore, including internal movements to our planet, which are still misunderstood and which seem to reverse the trend right now. Furthermore, The days shortened, therefore. In addition, Until the year 2020, the shortest record of the day that has been recorded since the registers was kept was “-1.05 milliseconds”. Meanwhile, That is to say that the day had lasted 1.05 ms less than the theoretical duration of 86. In addition, 400 seconds, which we use to settle our clocks (the atomic clocks, the most precise) on the “coordinated universal time”. Similarly, Since 2000, this record has been constantly broken. Therefore, The specialized site Timeanddate.com holds the archives: one day we saw -1.47 ms in 2020, fascinating phenomenon touches earth: “no then -1.59 ms in 2022, and -1.66 ms in 2024.

The largest camera in the world. For example, with a small Walloon touch, reveals its first “mega-images”

By combining astronomical observations by satellite, which make it possible to note the precise duration of the terrestrial rotation day by day, and the computer models which make it possible to predict its evolution, scientists believe that this summer 2025 will still experience exceptionally short days. On July 9, the day will last 1.30 ms less than a standard day. On July 22, 1,38 ms will be missing. And on August 5, 1.51 ms will miss 1.51 ms. Why are these three days in particular likely to be the shortest of 2025? Because it will be at these moments that the moon will be most distant from the terrestrial equator compared to its habits: it will be very offbeat towards the north. fascinating phenomenon touches earth: “no south of the earth, and this position is known to cause a faster rotation.

“It comes from inside the earth”

On a summer level 2025. we know how to explain why on August 5 will be short, and not on the 7th or 8. But it is the general trend in the acceleration of terrestrial rotation over several years that interests astronomers the most. because it has not for the time being defined. “No one expected it”testifies for Timeanddate.com Russian researcher Leonid Zotov, specialist in the subject at the State University of Moscow.

“Oceans and atmospheric models do not explain this enormous acceleration. Most scientists think it comes from the interior of the earth.” We know for example that large earthquakes can punctually accelerate the rotation of the earth (and modify its axis. of rotation).

“We had never observed the universe from this angle”: images never fascinating phenomenon touches earth: “no photographed from the space taken by a telescope

No need to adjust our clocks

A concrete consequence of this mysterious acceleration is that we no longer need. for almost a decade now, to readjust our reference atomic clocks. It was a ritual established since 1972: as the duration of astronomical day (UT1 time) is always a little longer than that of the theoretical day in coordinated universal time (UTC). with approximately 2 milliseconds each day, UTC and UT1 are supposed to shift more and more. After 500 days roughly. when the difference approaches a second, we add an “inter -school second” in universal time to re -turn on the stars. International reference clocks end the day at 11:59 p.m. and 59s, then there are 11:59m6m60s, before going to 0:00.

“Dazzling”. “Snooping”, “Spoofing”: these attacks practiced by Russia in the War of Space

It is a decision fascinating phenomenon touches earth: “no taken regularly, but always on a case -by -case basis, by scientists of the international service of land rotation and reference systems (ISRS). It has happened 27 times since 1972, and the last time was… in December 2016. Since that day, there is nothing to compensate for because of this funny acceleration of the land. The Airs recently confirmed that there would still be no interlayer in June 2025.