Types of asteroid

Most asteroids are known to reside in the asteroid belt but, on occasion, they might be drawn into the inner Solar System, for example when Jupiter knocks them out of their orbits. We can study these near-Earth asteroids as they make their way past us, and we’ve also sent numerous spacecraft to various asteroids to study them in greater detail. Here, we’ve taken a look at the three main types of asteroid we know of to date.

C-type

Carbonaceous (C-type) asteroids comprise over 75% of all known asteroids. They are dark with a similar composition to that of the Sun,

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Pallas

BIGGEST ASTEROID

Of course, like the biggest mountain, the size of asteroids and the limitation of current observational technology mean that the biggest asteroids we know of are restricted to those in our own Solar System. There’s also a technicality in their definition: with a diameter of 950 kilometres (590 miles) and containing around one third of the total mass of the asteroid belt, Ceres used to be the biggest asteroid but was upgraded to ‘dwarf planet’ in 2006, handing fellow asteroid belt object Pallas the accolade of biggest known asteroid by default.

However, with an average diameter of 544

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Missions to mine asteroids

NASA

In NASA’s 2013 budget it announced a proposal to capture an asteroid and drag it into a stable lunar orbit to be visited by future astronauts. It might sound far-fetched, but the technology behind it is relatively simple.

The plan is to launch a spacecraft powered by ion thrusters, which will then make its way to an asteroid beyond the Moon. Once reaching its target, the spacecraft would capture the asteroid in a large bag and, over a number of years, move it into a stable orbit around the Moon. This could then be visited and studied by astronauts

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Celestial events of September

SEPTEMBER asteroids.

Yulia 150-kilometer (89 Julia) will be in opposition on September 22 in 2 weeks after the passage of the perihelion — the point closest to the Sun in its orbit. Therefore, the conditions for observing this object will be quite favorable. Because of the relatively dark surface of his brilliance will not exceed 9 th magnitude.

From the cover of the main stars of the asteroid belt objects should be noted occultation Star 6th magnitude NІR 19718 in the constellation Taurus 30-kilometer asteroid Gudiashvili (2595 Gudiachvjli), which will take place on the night of September 17 16na.

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ETAL FATIGUE

И к нам пришло… Трехмерная стратегия в самом что ни на есть реальном времени, целиком и полностью основанная на принципах загадочно никакой аниме, — неловко даже, ибо нечем угостить японского гостя.

Торс, две десницы и, как ни странно, две ноги — перед нами “комбот”, высоченный дурной продукт мультфильмов о трансформерах. Полностью отрендеренные в 3D, динамически освещенные и тщательно анимированные, эти создания станут нашими солдатами в войне за золотоносные астероиды трех Корпо Наций, во главе которых, как водится, стоят родные братья, сошедшиеся лицом к лицу. Ой как трогательно… Боевые аниме-роботы ведут себя так же, как и боевые роботы системы F.A.S.A.: то

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Asteroid redirect mission concept complete.

But NASA’s plans to tow an asteroid into orbit around the Moon are caught in political crossfire.

NASA has completed its internal review of the asteroid redirect mission, its plan to capture a near-Earth asteroid and bring it closer to Earth. The review brought space agency bosses from all over the US together to examine and assess the concepts for every phase of the mission, «The agency’s science, technology and human-exploration teams are working together to better understand near-Earth asteroids,» said NASA associate administrator Robert Lightfoot, «including ones potentially hazardous to our planet; demonstrate new technologies and to send humans

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Asteroid Mining

Several companies have announced plans to harvest the resources of asteroids for use both on Earth and in space, but how would it be done and is it truly feasible?

Written by Jonathan O’Callaghan

For the last year or so asteroid mining has been one of the most talked about topics in space exploration. Not only have two start-up companies, Planetary Resources and Deep Space Industries (DSI), announced plans to begin the extraction of resources in the future, but NASA has also revealed its intention to begin the exploration of asteroids and return useful samples to Earth. The public have

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Armageddon averted in 2036.

Asteroid’s disastrous collision with Earth no longer on the cards.

The most dangerous asteroid discovered yet looks like it’s not going to impact Earth after all — but if it did it would create a bigger crater.

In 2004, astronomers discovered Apophis and initially deemed it to have a 2.7 per cent chance of slamming catastrophically into Earth in 2029, when it flies within 36,000 kilometres (22,000 miles) of Earth, inside the ring of geostationary satellites. That danger was quickly ruled out as its orbit was plotted more precisely, but a further menace lurked in the future; if during the

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Attack top

The probability that a large asteroid will fall into the ocean, not on land, much more, because 70 percent of the Earth’s surface is covered by water. The result can be catastrophic: a powerful explosion can cause such a tsunami that we can hardly imagine. The figure shows the approach of the asteroid, its fall and the emergence of giant waves. On the coast tsunami descend hundreds of meters: they are about to take down the shore a tiny lighthouse.

At first, 120-meter high tsunami waves. Then rain from nitric acid — the reaction product of oxygen, nitrogen and

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As many as three asteroid headed for Earth

08.03.2013

 

Astronomers have discovered a new asteroid in 2013 received index EC20, which is early in the morning on Saturday March 9, in the 130 fly thousands of miles away in the same day, as previously reported, to our planet razminetsya 100-meter object 2013 ET. According to data published on the website of NASA, the asteroid was discovered in 2013 EC20 March 7 American project to find asteroids "Catalina." Scientists estimate that the size of this celestial body is from 3

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