It is a case of when an asteroid collision will happen, rather than if it will happen
The asteroid warning comes ahead of the world asteroid day on 30th June
A Czech scientist who has analyzed 144 fireballs from meteor showers has already warned that the risk of a big-sized asteroid hitting earth surface is pretty high
June 23, 2017:
Earth is susceptible to asteroid attacks and it’s just a matter of time when it is going to happen. Any asteroid attack or outer space stuff on any major city could do a significant damage and millions of live would be affected.
Alan Fitzsimmons from Queen’s University Belfast in Britain, said “it is a case of when an asteroid collision will happen, rather than if it will happen.”
The asteroid warning comes ahead of the world asteroid day on 30th June. It is so because, on 30th June, 1908, an asteroid of small size exploded over Siberia which even out 2000 sq kilometres of area.
However this year’s world asteroid day would contain discussions and presentations which will be live streamed from Luxembourg in which Apollo 9 astronaut Rusty Schweickart and International Space Station astronaut Nicole Stott will answer questions from people on social media.
Mr Fitzsimmons told that scientists have worked at great lengths to recognise near earth asteroids and how much damage they can yield upon striking. He also told that over 1800 potentially dangerous objects have been identified near earth and many more are to be found.
However, he has said, “Astronomers find near-Earth asteroids every day and most are harmless. But it is still possible the next Tunguska would take us by surprise, and although we are much better at finding larger asteroids that does us no good if we are not prepared to do something about them.”
A Czech scientist who has analysed 144 fireballs from meteor showers has already warned that the risk of a big-sized asteroid hitting earth surface is pretty high.
– by Sumit Balodi of NewsGram. Twitter: @sumit_balodi
According to the mission description, equipped with an advanced radar instrument, PAZ will cover the entire globe in 24 hours, serving both commercial and government needs. Designed for a mission life of five and a half years, PAZ will orbit Earth 15 times per day, covering an area of over 300,000 sq. km from an altitude of 514 km and a velocity of seven km per second.
However, Paz was not riding alone on the recycled Falcon 9. Quietly on board were SpaceX’s two experimental broadband satellites, Microsat-2a and Microsat-2b, a big first step in SpaceX’s long-term plan to create satellite internet over the next decade.
The company has been relatively mum about the debut of its Starlink satellites, and about the entire programme itself.
“The Falcon launch carries 2 SpaceX test satellites for global broadband. If successful, Starlink constellation will serve least served,” Musk said on Wednesday.
According to the open files between SpaceX and the U.
S. Federal Communications Commission (FCC), in the coming years, the private U. S. space firm hopes to create a giant constellation of about 12,000 of interlinked broadband-internet satellites that will orbit in a synchronized dance above the Earth, delivering broadband access anywhere in the world.
Some 4,425 satellites will sit at low earth orbit (LEO), an estimate of 1,150 to 1,325 km above the Earth, while another 7,518 satellites will be launched into very-low-earth orbits (VLEO), some 335 to 346 km above the Earth.
According to a tally by the Union of Concerned Scientists, there are 1,738 satellites currently orbiting the Earth.
Earlier this month, FCC Chairman Ajit Pai gave his endorsement to SpaceX’s application to operate two huge constellations of broadband satellites.
Falcon 9’s first stage for the mission previously supported the FORMOSAT-5 mission from SLC-4E in August 2017. SpaceX didn’t attempt to recover Falcon 9’s first stage after Thursday’s launch because it “was an older version booster.”
However, there is another heightened interest in this launch.
By using “Mr. Steven,” a large navigable platform ship with extended “arms” and a net strung between them, SpaceX was trying to “catch” at least one of the two payload fairings that enclose the satellite at the top of the rocket.
These fairings were separated from the rocket at about three minutes after launch.
The value of these fairings is about $6 million, and recovering and reusing them would save money for SpaceX. Currently, a typical Falcon 9 launch costs around $62 million. (IANS)