Hayabusa 2 probe landed again successfully on the asteroid Ryugu


The Japanese space probe Hayabusa 2, has launched for the second Time successfully on the asteroid Ryugu. Now, you should take samples. The probe had lodged there before, several countries.

Hayabusa 2 is set to touch down three times on Ryugu of dust and stones on the eyes

In the early hours of the morning of the 11th. July has placed the Japanese space probe Hayabusa-2 (the “Falcon 2”) for the second time on the asteroid Ryugu 162173. The probe is about 300 million kilometers from earth.

Already on 22. February, the probe was landed for the first time on the asteroid, and blasted dust and Rock, to collect now. And in April, the probe fired a projectile onto the asteroid surface to produce a crater, and even more dust free. Later, the Material is to be transported back to earth. Since the summer of 2018, the probe had been orbiting the asteroid, and also several land probes disposed of.


The components – an Orbiter and a Lander seem to resemble the journey of Rosetta and Philae to the comet might be able (2004-2016), but only at first glance. This is because, unlike the Rosetta space probe Hayabusa 2 will send a capsule with the rock samples back to earth.

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How come the asteroid dust back to earth?

The Collection of asteroid material Hayabusa 2 uses a complex mechanism: The probe had already been dropped off at the first landing, a cylinder-shaped device on the surface, which has similar to a self – shot system shot down when in contact with the surface of a projectile at the asteroid. Now, a so-called Catcher is supposed to pick up the dust and particles.

2020 Hayabusa 2 returns to earth again, and bring the asteroid dust.

At the end of the probe grabs the captured Asteroid particles into a capsule. This is sealed and comes together with Hayabusa 2 on the way back to earth, where they the end of 2020, will end up – if all goes well.

Low appeal as a challenge

A major challenge for the Mission is the minimal attraction of the asteroid was. The landing manoeuvre had to be carefully initiated. Because there is a risk that the probe bounces off of the surface and around uncontrolled tumbles inventory.

It is not the first Time that the Japanese space Agency, JAXA brings asteroid dust back to earth. For the first time in 2010, with the spacecraft Hayabusa had succeeded.

A long journey

More than three years, exactly since the 3. December 2014, Hayabusa 2 on its way. 27. June 2018, the probe reached the asteroid that bears the name of a mystical, Japanese underwater castle: Ryugu.

MASCOT looks like a microwave but has an Arm to push off.

Asteroids, like comets, original celestial body. They allow us a look back in the history of the solar system more than four billion years ago. This makes them interesting for researchers. Asteroids are also in focus, because they are a potential threat for us.

Ryugus trajectory is away for the next few centuries, far from earth, but similar to near-earth asteroids could be the earth one day, quite dangerous. Therefore, the researchers want to learn as much as possible about these types of celestial bodies.

A German-Japanese-French Lander

And a little Hayabusa 2 of Rotetta, and Philae is different: The Japanese probe brought with him, not just a Lander, but four.

In addition to Mascot, the probe had two Minerva II Mini-robot is already on 22. September 2018 dropped. On 3. October, the Japanese space probe had thrown off the German-French gauge “Mascot” successfully.

The small device is about as big as a microwave oven, landed on schedule in a few minutes after the separation of the probe “Hayabusa 2” on the heavenly body. The country has made measurements with the data of researchers of the origins of the solar system on the track want to come. “Mascot” was in the direction of the Asteroid “pushed,” wrote the DLR at the time, on Twitter.

The landing was a complete success.

The country the device comes from Germany and France

Mascot is 9.6 kilograms. The Lander “Mobile Asteroid Surface Scout” (MASCOT), built by the German centre for air and space travel (DLR) and the French space Agency, CNES, is equipped with a Schwungarm.

It allowed him to hop on the asteroid surface and thus to improve its Position and to change, if he will be unfavourable. He has, among other things, a camera, a Radiometer, a spectral microscope and a Magnetometer.

Three years Hayabusa 2 was on the way to the asteroid Ryugu

The use of Mascot lasted only a few hours, however, under extreme weather conditions. On-the-spot temperatures of minus 47 to 63 degrees Celsius. After that, the Lander remained on the asteroid.

Until the asteroid dust can begin his journey back to earth, the spacecraft and the Flight controllers on earth to do much: Until the end of 2019, Hayabusa 2 will measure the asteroid circles, him, and, with its remote sensing instruments to explore.

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Hayabusa 2 features an infrared spectrometer that can the Mineral and water content measure, and a thermal imaging camera to investigate the temperature and the thermal inertia of the asteroid.

And one more feature it has to offer, Hayabusa 2 to: you should leave a two pound copper body on the asteroid fall, the – so, the researchers hope, can be an artificial crater behind. Through him, the probe should take a look under the surface of the comet and analyze life.

Currently, the NASA spacecraft Osiris-REx is also on the way to the asteroid 101955 Bennu, also known as 1999RQ. Also, you should take soil samples and likely 2023 bring back to earth. Bennu is more dangerous than Ryugu. The probability that he has the earth in the last quarter of the 22. Century hits, ies, in the case of 1:2700.

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