The Federal Space Agency said a spacecraft might be dispatched to knock a large asteroid off course and reduce the chances of Earth impact, even though U.S. scientists say such a scenario is unlikely.
The Federal Space Agency will hold a meeting soon to assess a mission to Apophis, agency chief Anatoly Perminov told Voice of Russia radio. He said his agency might eventually invite NASA, the European Space Agency, the Chinese space agency and others to join the project.
When the 270-meter asteroid was first discovered in 2004, astronomers estimated its chances of smashing into Earth in its first flyby, in 2029, at 1-in-37. Further studies have ruled out the possibility of an impact in 2029, when the asteroid is expected to come no closer than 29,450 kilometers from Earth’s surface, but they indicated a small possibility of a hit on subsequent encounters. NASA had put the chances that Apophis could hit Earth in 2036 as 1-in-45,000. In October, after researchers recalculated the asteroid’s path, the agency changed its estimate to 1-in-250,000.
Without mentioning NASA’s conclusions, Perminov said he heard from a scientist that Apophis is getting closer and may hit the planet. “I don’t remember exactly, but it seems to me it could hit the Earth by 2032,” Perminov said, speaking on Dec. 30.
“People’s lives are at stake. We should pay several hundred million dollars and build a system that would allow us to prevent a collision, rather than sit and wait for it to happen and kill hundreds of thousands of people,” Perminov said.
Scientists have long theorized about asteroid deflection strategies. Some have proposed sending a probe to circle around a dangerous asteroid to gradually change its trajectory. Others suggested sending a spacecraft to collide with the asteroid and alter its momentum, or hitting it with nuclear weapons.
Perminov wouldn’t disclose any details of the project, saying they still need to be worked out. But he said the mission wouldn’t require any nuclear explosions.
Hollywood films “Deep Impact” and “Armageddon” have featured space missions scrambling to avoid catastrophic collisions. In both movies, space crews use nuclear bombs in an attempt to prevent collisions.
“While Apophis is almost certainly not a problem, I am encouraged that the Russian science community is willing to study the various deflection options that would be available in the event of a future Earth threatening encounter by an asteroid,” Don Yeomans, who heads NASA’s Near-Earth Object Program, said in an e-mail.