Yet another large asteroid is set to give Earth a close shave this weekend. 2013 ET, which was discovered on March 3rd by scientists at the University of Arizona, is roughly the size of a football field and is expected to pass by the planet at around 2 pm EST on Sunday, March 10th. Luckily for us, it's only close in astronomical terms: it probably won't get any closer than 2.5 times the distance to the moon. Still, it's the second near-Earth asteroid this week to be discovered with very little advance notice, following 2013 EC which came just within the distance of the moon's orbit on March 4th.
This also marks the 4th space rock to come close to Earth in the past month, counting DA14 and the Russian meteor on February 15th. Including the chance for comet C/2013 A1, “Siding Spring”, to hit Mars in 2014, it seems like a pretty dangerous time to be a planet in our solar system. Despite astronomers' best efforts to spot these dangers in advance, the last 4 weeks have shown a need to improve our early warning system and develop a means of redirecting anything on a collision course with our pale blue dot.
Learn more about 2013 ET, including where you can watch its pass on Sunday, here: http://goo.gl/ZcS7k
Tell Congress to increase NASA's funding so we can put an end to these late-discoveries before it's too late: http://www.penny4nasa.org/take-action/