January 27, 2022

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The rescue system is working. NASA just launched its latest project to protect the Earth

NASA has just launched its latest system, which will give humanity and Earth another weapon in the war against life-threatening asteroids. Our solar system is full of them and efforts to defend against them are ever increasing, Sciencealert . says.

The new system, called Sentry-II, works with data from a number of telescopes and observatories, and its main task is to monitor surrounding asteroids and, in particular, to predict special cases that the original 2002 Sentry system could not handle.

It will also solve the Jarkovsky effect

As NASA states in its statement, the special ability of Sentry-II is, for example, the Yaroslav Effect Resolving. This phenomenon describes a small force acting on a rotating object, in this case solar radiation on an asteroid, which can change its orbit over time.

Pablo Carlos Bodasi / Wikimedia Commons

This problem occurred, for example In the case of giant asteroids, such as Apophis which is potentially risky whose Bennu, where one of the ground probes has already landed and sampled. In such cases, it has been necessary so far to make a number of additional calculations.

There is also a fundamental difference in determining the probability of a collision. While the old system chose two points on an uncertain orbit and compared them based on assumptions about a possible orbit, Sentry-II notes thousands of random points without assumptions.

Observation is not enough for us

“In terms of numbers, these special cases are only a very small part of all NEOs for which we calculate the probability of a collision. However, we will find a much larger number of special cases when the planned NEO mission and Vera C Observatory become. Rubin in Chile is two-factor, so we have to be prepared.” Automation engineer Javier Roa Vicens explains.

SwRI / Don Davis

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He previously worked on this project for NASA, but today he is involved in it Starlink mega satellite, which aims to provide a global internet connection, including remote areas.

Thanks to these improvements, the new system is more accurate and can alert us to a potential asteroid impact even if the old system is simply ignored. However, a system for monitoring such asteroids is not enough to save humanity, and NASA is well aware of this.

NASA/Johns Hopkins APL

This is also one of the reasons why he sent a long-awaited mission into space recently Arrow. It flew aboard a SpaceX Falcon 9 rocket Its goal is a binary asteroid, and one of them is to collide with it and try to change its course. If this experiment is successful, humanity will be able to deter future dangerous asteroids by sensitively deviating from their orbit.