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The most dangerous events are not necessarily the riskiest. The probability of an asteroid falling large enough to cause planetary-scale impacts is very low, but not zero. Therefore, 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 to discuss the “Planetary Defense” program in the company of two scientists. We invite you to participate.

The impact, or risk of impact, of 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 remains that the possibility of such an event is anything but imaginary.

A dozen tons of space dust falls to Earth every day. some of this dust track in the solar system from 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 that falls to the earth every day and comes from larger blocks, the meteoroidswhich when crossing theatmosphereusually evaporate in one flash by light that’s what we call ” falling star ” True race car

The live Futura – Planetary Defense: join in and ask your questions!

Most disturbing is not this permanent rain of alien pebbles, but these infinitely larger blocks, asteroidswhose size varies between that of a car and that of a French department. Everyone has in mind the devastating event that life on earth experienced 66 million years ago and that everything changed radically ecosystems on a planetary scale.

Certainly, the larger the asteroid, the less likely it is to hit. An impactor as big as the one that forever changed the course of dinosaurs falls to Earth about once every 100 million years. But that doesn’t raise the question of what humanity might do if it found out that one of these rocky mountains would collide with Earth a few decades later.

What profession 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 always ready to go? Would these organizations even know how to work together like the movie? don’t look up

Planetary Defense: A Program to Prevent the Threat of a Near-Earth Object

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

  1. Studying and experimenting resources physically to divert a possible future impactor.
  2. A meeting (Planetary Defense Conference), every two years, where representatives of governments, space agencies and experts from all walks of life consider a scenario created from scratch and test in this massive simulation the means that international coordination could implement to deal with disasters (or not). prevent.

It is to discuss this planetary defense and the means humanity is using today to protect and protect it backup in the unlikely event of a collision with an asteroid large enough to represent a real-world hazard, that we’ll give you an appointment on Thursday, May 5 at 8pm on the platforms Youtubefacebook and twitch 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 manager of the mission Hera of the ESA.

Interested in what you just read?