The United Nations' International Asteroid Day on 30 June highlights ESA's expanding efforts to secure our future by understanding and addressing risks posed by near-Earth objects that could impact our planet.
Space Exploration
Jun 22, 2020
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105
Surprising results from recent asteroid missions have highlighted the importance of testing planetary defence strategies in space, according to scientists participating in the joint ESA/NASA Asteroid Impact and Deflection ...
Space Exploration
Sep 18, 2019
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32
Engineers designing ESA's Hera planetary defence mission to the Didymos asteroid pair are developing advanced technology to let the spacecraft steer itself through space, taking a similar approach to self-driving cars.
Space Exploration
Apr 5, 2019
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33
The mission to the smallest asteroid ever explored will employ the same main camera as the mission to the largest asteroids of all. ESA's proposed Hera spacecraft to the Didymos asteroid pair has inherited its main imager ...
Space Exploration
Mar 19, 2019
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20
Asteroids on the main belt, situated between Mars and Jupiter, move around the sun in quasi circular orbits, so they do not undergo the temperature changes which, in comets, produce the characteristic tails. Nevertheless, ...
Space Exploration
Mar 2, 2017
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25
Though it was once believed that all asteroids are giant pieces of solid rock, later hypotheses have it that some are actually a collection of small gravel-sized rocks, held together by gravity. If one of these "rubble piles" ...
Space Exploration
Sep 13, 2010
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0
(PhysOrg.com) -- The asteroid belt between Mars and Jupiter is often depicted as a dull zone of dead rocks with an occasional wayward speedster smashing through on its way toward the sun.
Space Exploration
Aug 25, 2010
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