Tuesday , October 4 2022

NASA mission unpublished: an auditor will try to return to the Earth with asteroid samples – 12/02/2018


After two years of death The low waste land, the Origin, the Spectrum interpretation, Resource identification, Security and control Explorer (OSIRIS-REx) of NASA, will reach its goal on Monday this month. 3. Determine, primitive, carbon-rich asteroid, which could include the chemical precursors of the origin of the life and oceans of our planet. The spacecraft will spend almost two years mapping its contours, before collecting a sample of the rough surface layer and returning to the Earth in 2023.

Set a picture of a distance of 2.3 million kilometers,

Set a picture of a distance of 2.3 million kilometers,

When the ship goes to an orbit Determine, – was baptized with the name of Egypt's mythological bird related to death – this is the first time OSIRIS-REx operates close to its target. Month ago, the auditor, from a distance of 2.3 million kilometers, it had its first blurred image of the cosmic body with a diamond shape, similar to a small mountain of 500 meters in diameter. It is intended that only 2020 land is on its surface, having a sample of dust, rotate and return to Earth in 2023.

Once OSIRIS-REx – whose operating cost is approximately 800 million dollars – connects the same direction as the rotation movement of this rocky body, it will totally make five paths over the north pole, the equator and & # 39; the southern pole to a distance of 7 kilometers. During these trips, you will map the surface, estimate its mass, document its composition and refining the model state rotation.

These move that is extended for 18 months, provides the experience of feeding near a small body to the mission team. In addition, during that period, we will try to identify dust and gas clouds that could be dangerous sources for the device when operating the scientific program.

Artistic recreation of the search using TAGSAM's arm.

Artistic recreation of the search using TAGSAM's arm.

Setting is one of the oldest asteroids, which responds to the Trojans family, known by NASA. I chose among the 500,000 Solar System bodies. Scientists understand that these asteroids are They bombed the Earth When he was very young, billions of years ago, sowing a lifestyle structure.

The doubt is that Bennu – which also has a relatively high likelihood of affecting the Earth in the late 22nd century– Includes material that has not changed since the formation of the Solar System, exceeds 4.5 billion years. The analysis of any element that is inside will provide valuable information about the formation and evolution of the Solar System and therefore the origin of life on Earth.

As if it did not anticipate any resistance, a week ago the spacecraft used its robotic arm, from the name Touch-and-Go Sampling Procurement Mechanism (TAGSAM). Lockheed Martin engineers tested the flexibility of the joints and through the SamCam camera, it was confirmed that the arm was ready to collect a Selling gift sample.

The robotic mechanism is a wet-vacuum combination to take samples. The spacecraft will go to the asteroid until the shovel, at the end of the mechanical arm, touches the rocky surface lightly. The move can be activated up to three times and OSIRIS-REx could leave Setting with a sample of dust and clocks that oscillate between 60 grams and two gilo. The prospect is to drop them on Earth in a capsule that will be a land with parachute aid.

The serious challenge is zero severity as the spraying device could save the collection instead. To this end, the difficulty is predicted to predict exactly what Bennu will have in the coming months. Setting is a black mature asteroid that absorbs sunlight and throws it into heat, which acts as a gradually adapted soft propeller. This modification in the orbit is called the effect of Yarkovsky.

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OSIRIS-REx is not the first one to try this sport. Hayabusa 2 mission of the Japanese space agency (JAXA) has deposited this small September 21 capsule comprising the two rovers on the face of the Ryugu asteroid. The vehicles, in terms of cookie size, do not have wheels but they move by jumping on the asteroid. The ship will spend about a year and a half investigating the space object of 290 million kilometers of Earth, and will travel back to planet in 2020 with samples of & # 39; i soil

The other front was Rosetta auditor, who was in the hands of the European Space Agency (ESA) managed to install a comedy module. After ten years of travel, the historical goal of his mission pointed out when the Philae mini lab had separated from the ship and succeeded on the surface of Comet 67P / Churyumov-Geramisenko.

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