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NASA Unpublished Mission: Trying to return Earth to samples of an asteroid probing – 02/12/2018


after two years running Silence for desert land, Probe Origenes, NASA's spectral interpretation, identification of resources, NASA's explorer of security and control (better known as OSIRIS-REx) will reach its goal Monday 3. Bennu is a primitive asteroid, rich carbon to be the pioneers of oceanic origin and planetary ocean currents. After two million years, the spacecraft will continue mapping the environments to collect a solid surface rocket sample and return it to Earth in 2023.

Bennu. Every year it has a photo of 2.3 million kilometers,

Bennu. Every year it has a photo of 2.3 million kilometers,

When the ship enters Bennu's orbit, when it was christened with the name of an Egyptian mythological bird of death, OSIRIS-REX will be the first time that its purpose is met. A month ago, 2.3 million kilometersHe got the first shaggy figure of cosmic body with a diamond shape, similar to a small 500-meter diameter coaster. According to the planned soil for 2020, it is intended to obtain a powder sample, Encapsulate and return to Earth in 2023.

Once OSIRIS-REx – an operating cost of about $ 800 million – connects the movement of the rocky body with the same direction, consisting of five pole north pole, equator and south pole. 7 kilometers distance. In these walks, you will map the surface, calculate the mass, document its composition and rotate the state model.

These maneuvers It will be extended for 18 months, the purpose of the mission is to provide an experience to navigate next to a small group. Additionally, at that time, we will identify dust and gas clouds, as long as they can be a source of risk in the execution of the scientific device.

At this time, the current artistic artwork spread by TAGSAM.

At this time, the current artistic artwork spread by TAGSAM.

Bennu is one of the oldest asteroids, when it responds to a Trojan family known by NASA. The 500 thousand body of the Solar System was selected. Scientists understand this asteroid The earth was bombed When he was very young, millions of years ago, the creation of a life-creating structure.

We suspect that Bennu – The Earth's influence has a fairly high probability at the end of the century– Have a material that has not changed more than the solar system formation 4.5 million years. In order to analyze any element inside it, it will provide useful information on the formation and evolution of the solar system and, therefore, the origin of Earth's life.

As opposed to anticipation, a spacecraft spread its robotic arm a week ago, the "Touch-and-Go Sampling Acquisition Mechanism" (TAGSAM). Lockheed Martin engineers tested the flexural joints and sampled through SamCam's camera that it was to pick up a sample of Bennou's gift.

The mechanism of robotics is a combination of spoons for taking samples. The spacecraft will approach the asteroid, the shovel located at the end of the mechanical arm, which touches the rocky surface gently. The maneuver can be executed until three times and OSIRIS-REX shows Bennu shows dust and stones between 60 grams and two kilograms. It is anticipated to get out of the floor with a help with a parachute in a capsule.

The big challenge is zero gravity, because the device can dust dust. To do this, the difficulty in determining the route coming to Banu in the coming months will be added. Bennu is a rugged black asteroid that absorbs sunlight and eliminates heat, which functions as a smooth propellant that gradually changes its path. This change in the orbit is known as Yarkovsky effect.

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The OSIRIS-REx test is not the first to test this projection. Japanese Space Agency (JAXA) Hayabusa 2 has found a tank on Ryu's on September 21 with two rover asteroids. Vehicles, both the size of a cookie, do not have wheels but They jump on the asteroid. The ship will spend about a year and a half the space object, which will reach 290 million km of Earth and our planet for 2020 with land samples.

Rosetta's other special discovery was anchoring the comet module from the European Space Agency (ESA). After ten years, he defined the historical purpose of his work separated by Philae mini-laboratories. They buried the ship and the Comet 67P / Churyumov-Geramisen surface.

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