GMV leads the system that "drives" the HERA mission for planetary defence
by Staff Writers
Madrid, Spain (SPX) Dec 14, 2018
The technological multinational GMV leads an international consortium entrusted with designing the analysis of the HERA mission and developing its Guidance, Navigation and Control (GNC) System. The HERA mission is run by the European Space Agency (ESA) and led by OHB-System AG.
Based on the heritage of the Asteroid Impact Mission (AIM) project, HERA aims to be the first interplanetary mission that visits a binary asteroid system, Didymos. This system is composed of a main asteroid (Didymain) and another asteroid that orbits around it (Didymoon).
The mission's main objective is to develop planetary defence technologies. To this end, NASA will send a first spaceship called DART, which will crash into the secondary asteroid Didymoon, in order to study how an asteroid could be deflected if it were on a collision course with Earth.
HERA's role will be to characterise the asteroids system after the impact and obtain data of incalculable value that will make it possible to develop strategies to handle an eventual impact on Earth. This mission would place Europe once again as the vanguard of planetary exploration, science and technology, repeating Rosetta's great success.
But planetary defence is not the only purpose of the mission - scientific development and the research of the origins of the Solar System is another of the main pillars of the HERA mission. Asteroids, small moons, and comets are not only dangerous objects wandering the Solar System, but also possibly the most interesting objects that can be visited.
All these celestial bodies are replicas of the primitive Solar System, since they were formed in the very early stages of its development and have remained unchanged, which means that there is an unconceivable amount of scientific information to be gathered.
"It is of fundamental importance that the space sector emphasises asteroid missions, both in order to be able to react to possible impacts on our planet and to strengthen the scientific knowledge of our universe and develop innovative technologies for planetary protection," states Mariella Graziano, Executive Director of Space Systems and Robotics at GMV.
GMV's role in the mission This consortium is composed of four companies in the GMV group (Spain, Romania, Poland and Portugal), OHB-SWE and Spinworks. Within GMV alone, the HERA team is made up of 20 professionals who for 12 months will be entrusted with developing the technology required to handle the spaceship.
GMV, European leader in GNC systems among others, is a pioneer at the global level in exploration missions including those involving asteroids. Of the European projects which GMV has led in this field, it is worth mentioning AIM, Marco POLO, Neoshield2, SYSNOVA-BEAST and Rosetta.
Asteroid proximity operation and navigation are extremely demanding tasks. The small size and mass of these bodies, as well as their irregular shape and the unknown environment of deep space, make it very difficult to control safely spaceships moving around one of these bodies. For this purpose, GMV is developing a highly innovative autonomous GNC system to provide this additional safety, thereby guaranteeing the mission's success.
The tests to certify the level of technological preparation of GMV's autonomous GNC system will be carried out using a camera designed to work in space. The hardware-in-the-loop simulation tests will be developed in GMV's optical laboratory and in its platform-art@ robotic facilities.
Crater that killed the dinosaurs reveals how broken rocks can flow like liquid
West Lafayette IN (SPX) Oct 25, 2018
Sixty-six million years ago, an asteroid the size of a small city smashed into the earth. This impact, the one that would lead to the end of the dinosaurs, left a scar several miles underground and more than 115 miles wide. Chicxulub, which lies underneath the Yucatan Peninsula of Mexico, is the best-preserved large impact crater on Earth, although it's buried underneath a half mile of rocks. It's also the only crater on the planet with a mountainous ring of smashed rocks inside its outer rim, cal ... read more
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