Even at a distance of 87,000 miles, the comet's tail of dust, debris, and gas could have done serious damage to NASA's Mars orbiters.
If this were a Hollywood disaster movie, we would be sending Bruce Willis in the space to blow up a comet. Luckily, comet C/2013 A1 (also known as “Sliding Spring”) poses no real threat to Earth and will miss us by quite a fair distance. Still, Sliding Spring caused a bit of a fuss over the weekend, as it blasted past Mars going 125,000 miles per hour.
According to ValueWalk.com, at 2:27 p.m. on Sunday afternoon, Sliding Spring was 87,000 miles away from Mars. And while that may sound far away, it was a bit too close for comfort for NASA’s expensive machinery. Fortunately, NASA was able to predict the approach of the comet and move all three of its orbiters – Reconnaissance, Odyssey, and MAVEN – around to the other side of the planet to avoid any damage from space junk. NASA’s two surface rovers, meanwhile – Curiosity and Opportunity – were protected by the Mars atmosphere.
Sliding Spring hails from the Oort Cloud. Even at a distance of 87,000 miles, the comet’s tail of dust, debris, and gas could have done serious damage to NASA’s orbiters.
Earth, however, has nothing to worry about. NASA says that Sliding Spring is headed toward the outer reaches of the solar system and came closer to Mars than it will ever come to us. Like other comets, Sliding Spring is a chunk of ice and rock. The core of the comet is apparently just 1,000 meters wide.
NASA was not the only space agency that had to move expensive gear in order to prevent damage due to the comet. Indian scientists also had to maneuver their Mars Orbiter Mission (MOM) to avoid flinging dust and debris. However, despite the inconvenience, space experts are likely excited about Sliding Spring. From the United States’ Hubble Telescope to the European Mars Express, many orbiters and telescopes snapped great pictures of the comet on its journey past Mars.
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