We will (as a global planetary science community) learn much — both about the asteroid itself, which poses no collision threat to Earth — and about planetary defense, here — come 2029.
Heres’ the ESA.int update, on this 2029 mission:
. . .Apophis, a 375-metre-wide asteroid, will safely pass Earth at a distance of less than 32 000 kilometres. For a few hours, Apophis will be closer than satellites in geostationary orbit and visible to the naked eye from Europe and Africa.
Space agencies have sent a number of spacecraft to asteroids, but we have never had a mission at an asteroid as it sweeps past a planet. This grand natural experiment offers a unique opportunity to study in real time how an asteroid responds to a strong external force – and the European Space Agency aims to have a front-row seat.
To this end, ESA’s Space Safety Programme has proposed the Rapid Apophis Mission for Space Safety (Ramses). If approved, Ramses would launch a year ahead of the Apophis flyby, travelling through space to rendezvous with the asteroid months before its encounter with Earth.
Ramses would use a suite of scientific instruments to measure Apophis’s size, shape, composition, rotation and trajectory as it is pulled and stretched by Earth’s gravity. It would also deploy two smaller spacecraft at the asteroid to study Apophis up-close.
Apophis poses no danger to Earth during the flyby, but an asteroid of this size passes this close to our planet only once every roughly seven thousand years. By seizing this exceptionally rare opportunity to study an asteroid before, during, and after a planetary encounter, Ramses would help us prepare for the day that we may need to deflect a hazardous object on a collision course with Earth….
Go now,and be kind to your mother — the Earth:
नमस्ते
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