Await the astronomical spectacle of a million years

At 1:27 am on October 21 (Vietnamese time), astronomers will witness a million-year-old scene once the comet Siding Spring (C / 2013 A1) flies past Sao Fire is at the closest distance, about 141,600km - almost half the distance from the Earth to the Moon.

>>>Comet near Mars on sight

Comet Siding Spring flying over Mars is an astronomical phenomenon with a million years.(Source: NASA)

At that time, comets were predicted to rush at about 54.717m / sec.

NASA has moved its space combat fleet in orbit to avoid the risk of being damaged by the dust from the comet.

NASA experts call the event 'the gift of the universe' , since it is the occasion for Earth spacecraft to gather information about the size, speed and direction of the comet, as well as the structure of it.

Astronaut John Grunsfeld said the comet never entered the inner region of the solar system, so it would provide new clues to the early days of our solar system.

Siding Spring is derived from the Oort cloud , a spherical space outside the solar system with a distance of 50,000 to 100,000 astronomical units, containing icy objects left after the formation process. this.

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