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The most dangerous events are not necessarily the most risky. The probability of an asteroid falling large enough to cause consequences on a planetary scale is very low, but not zero. That is why it is advisable to prepare now for the day when the measurements of the orbit of a small celestial body will accumulate without the Earth leaving the “window of uncertainty”. Futura is organizing a live on May 5 in the company of two scientists to discuss the “Planetary Defense” program. We invite you to participate.

The impact or risk of impact on a catastrophic celestial body (asteroid or comet) with the Earth has graced film productions for decades. And if these stories make it possible to create perfect blockbusters, the fact is that the possibility of such an event is anything but imaginary.

Every day, a dozen tons of space dust falls on Earth. Some of this dust orbit in the solar system since time immemorial and another was released into space by comets as they sublimate their volatile elements. To these ten tons we can add about four times more material falling on Earth daily, coming from larger blocks, meteoroidsas when crossing itatmosphereusually evaporates in one flash of light as we call ” shooting stars ” Where Racing car.

The live Futura – Planetary Defense: Join us and ask your questions!

The most disturbing thing is not this permanent rain of extraterrestrial pebbles, but these infinitely larger blocks, asteroidswhose size varies between the size of one car and a French branch. Everyone has in mind the devastating event that life on Earth was experienced 66 million years ago, and that radically changed everyone ecosystems on a planetary scale.

The larger the asteroid, the lower the probability of a collision. An impactor the size of the one that forever changed the course of dinosaurs falls to Earth about once every 100 million years. But that does not raise the question of what humanity could do if it found out that one of these mountain mountains would collide with Earth a few decades later.

What resort do we have? What solutions are there if such news is ever announced? Do space agencies and governments around the world have a Bruce Willis ready to go at all times? Would these organizations even know how to collaborate, like the movie do not look up ?

Planetary Defense: a program to prevent the threat from a down-to-earth object

Today, the international program for the study, monitoring, measurement and evaluation of the hazard is by objects near the ground (celestial objects whose orbits cross the Earth) are called: “Planetary Defense”. In addition to the appearance of the study of asteroids potentially dangerous, two other projects are part of this program:

  1. Study and experimentation of means physical to divert a possible future impactor.
  2. A meeting (Planetary Defense Conference), every two years, where representatives of governments, space organizations and experts from all walks of life consider a scenario created from scratch and test, in this gigantic simulation, the means that international coordination could implement to avoid (or not) disaster.

It is to discuss this planetary defense and the means that humanity puts today for its protection and its backup in the unlikely event of a collision with an asteroid large enough to represent a real danger, we will give you an appointment on Thursday 5 May at 20.00 on the platforms Youtube, Facebook and Rich from Futura-Sciences to discuss with our two guests: Elisabetta Dotto, Scientist at Inaf (Rome Observatory) and Patrick Michel, CNRS Research Director at the Côte d’Azur Observatory, Scientific Head of Mission Hera by ESA.

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