In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.

This article is over 11 months old 
  
 The space rock 2018 CB is up to 40m long and will come within 64,000km of the planet’s surface 
  
 Asteroid passing close to Earth today – no need to worry 
  
 An asteroid is headed our way – the second this week – but there’s no need to worry. 
  
 The newly discovered space rock will pass within 39,000 miles (63,000km) of Earth on Friday evening GMT. That’s less than one-fifth the distance to the moon. 
  
 Designated 2018 CB, the asteroid is an estimated 50ft to 130ft (15 meters to 40 meters) in size, possibly bigger than the one that exploded over Russia five years ago this month. 
  
 SpaceX oddity: how Elon Musk sent a car towards Mars Read more 
  
 The manager of Nasa’s Center for Near-Earth Object Studies, Paul Chodas, said asteroids this size usually don’t come this close – just once or twice a year. 
  
 While Friday’s close approach isn’t a huge deal, Chodas said in an email “it is a reminder that asteroids can pass very close to our planet and it’s important that we find these objects when they do get close”. 
  
 It will be the second time this week an asteroid buzzes Earth. On Tuesday, an asteroid passed within 114,000 miles (183,000km), slightly more than halfway to the moon. 
  
 Both of this week’s asteroids were discovered on 4 February by astronomers at the Nasa-funded Catalina Sky Survey in Arizona. Last year, more than 2,000 previously unknown near-Earth asteroids were discovered, according to Chodas. 
  
 A whopper asteroid named Apophis – estimated at approximately 1,000 feet or more than 300 meters – will pass at just one-tenth the distance between Earth and the moon in 2029. In the meantime, astronomers are on the lookout for asteroids lurking in the cosmic shadows. 
  
 “These asteroids are simply too small to be detected until they get really close to our planet,” he wrote. 
  
 That was the case at Chelyabinsk, Russia on 15 February 2013; the incoming object – an intense fireball as it entered the atmosphere – caught everyone by surprise. ||||| Two small asteroids recently discovered by astronomers at the NASA-funded Catalina Sky Survey (CSS) near Tucson, Arizona, are safely passing by Earth within one lunar distance this week. 
  
 The first of this week's close-approaching asteroids -- discovered by CSS on Feb. 4 -- is designated asteroid 2018 CC. Its close approach to Earth came Tuesday (Feb. 6) at 12:10 p.m. PST (3:10 p.m. EST) at a distance of about 114,000 miles (184,000 kilometers). The asteroid is estimated to be between 50 and 100 feet (15 and 30 meters) in size. 
  
 Of potentially greater interest is asteroid 2018 CB,which will also pass closely by Earth on Friday, Feb. 9, at around 2:30 p.m. PST (5:30 p.m. EST), at a distance of about 39,000 miles (64,000 kilometers), which is less than one-fifth the distance of Earth to the Moon). The asteroid, which is estimated to be between 50 and 130 feet (15 and 40 meters) in size, was also discovered by CSS on Feb. 4. 
  
 "Although 2018 CB is quite small, it might well be larger than the asteroid that entered the atmosphere over Chelyabinsk, Russia, almost exactly five years ago, in 2013," said Paul Chodas, manager of the Center for Near-Earth Object Studies at NASA's Jet Propulsion Laboratory in Pasadena, California. "Asteroids of this size do not often approach this close to our planet -- maybe only once or twice a year." 
  
 JPL hosts the Center for Near-Earth Object Studies for NASA's Near-Earth Object Observations Program, an element of the Planetary Defense Coordination Office within the agency's Science Mission Directorate. 
  
 More information about asteroids and near-Earth objects can be found at: 
  
 https://cneos.jpl.nasa.gov 
  
 https://www.jpl.nasa.gov/asteroidwatch 
  
 For more information about NASA's Planetary Defense Coordination Office, visit: 
  
 https://www.nasa.gov/planetarydefense 
  
 For asteroid and comet news and updates, follow AsteroidWatch on Twitter: 
  
 twitter.com/AsteroidWatch 
  
 News Media Contact 
  
 DC Agle818-393-9011Jet Propulsion Laboratory, Pasadena, Calif.agle@jpl.nasa.gov2018-025 ||||| NASA/JPL-Caltech 
  
 On February 15, 2013, a roughly 65-foot (20-meter) near-Earth asteroid exploded as it entered the atmosphere over the southern Ural region in Russia. Though it didn’t reach the ground, the shockwave from the Chelyabinsk meteor caused damage to over 7,200 building and injured nearly 1,500 people (primarily from shattered glass). //istdochmiregal via GIPHY 
  
 On February 4, astronomers using the NASA-funded Catalina Sky Survey (CSS) detected two asteroids with orbits that take them between Earth and the Moon this week. Fortunately, neither object’s trajectory presents a threat to Earth.In fact, the week’s first visiting asteroid — dubbed asteroid 2018 CC — has already completed its closest approach to Earth. The small rocky body zoomed by our planet on Tuesday, February 6, at 3:10 p.m. EST, just 35 minutes before SpaceX launched their Falcon Heavy rocket . Asteroid 2018 CC, which is estimated to be between 50 and 100 feet (15 and 30 meters) wide, came within about 114,000 miles (184,000 kilometers) of Earth.On the other hand, the potentially more interesting asteroid — named asteroid 2018 CB — will pass by Earth on Friday, February 9, at around 5:30 p.m. EST. With an estimated size of between 50 and 130 feet (15 and 40 meters), this asteroid is not just larger than 2018 CC, but it also passes much closer to our planet. Asteroid 2018 CB will skirt by Earth at a distance of 39,000 miles (64,000 km), bringing it five times closer to us than the Moon.“Although 2018 CB is quite small, it might well be larger than the asteroid that entered the atmosphere over Chelyabinsk, Russia, almost exactly five years ago, in 2013,” said Paul Chodas, manager of the Center for Near-Earth Object Studies at NASA’s Jet Propulsion Laboratory, in a press release . “Asteroids of this size do not often approach this close to our planet — maybe only once or twice a year.”For more information and news related to comets and asteroids, follow AsteroidWatch on Twitter. ||||| In the daytime sky, you won’t be able to see the relatively small asteroid as it zips past. But at 2:30 p.m., you might take a quick break from whatever it is you are doing to acknowledge the lonely space traveler’s quick trip through our Earth-moon system. ||||| A fast-moving asteroid will make a close flyby of Earth this Super Bowl Sunday (Feb. 4), but it poses no risk of hitting our planet, according to NASA. 
  
 The asteroid, called 2002 AJ129, will make its closest approach to Earth at 4:30 p.m. EST (2130 GMT), and will be about 2.6 million miles (4.2 million kilometers) from our planet at its closest point, NASA officials said. It's traveling at a breathtaking speed of about 76,000 mph (122,310 km/h), faster than most near-Earth asteroids, they added. 
  
 But while asteroid 2002 AJ129 is classified as "potentially hazardous" by NASA, at no point now or during the next century does it pose an impact threat to Earth, NASA officials said. Asteroids are classified potentially hazardous if they are larger than 460 feet (140 meters) in diameter and are in orbits that approach within 4.65 million miles (7.48 million km) of Earth. [In Images: Potentially Dangerous Asteroids Tracked by NASA] 
  
 "We have been tracking this asteroid for over 14 years and know its orbit very accurately," Paul Chodas, manager of NASA's Center for Near-Earth Object Studies at the Jet Propulsion Laboratory, Pasadena, California, said in the statement. "Our calculations indicate that asteroid 2002 AJ129 has no chance — zero — of colliding with Earth on Feb. 4 or any time over the next 100 years." 
  
 Asteroid 2002 AJ129 will make its closest approach to Earth on Feb. 4, 2018, at 4:30 p.m. EST (2130 GMT). At closest approach, the asteroid will be no closer than 10 times the distance between Earth and the moon. Credit: NASA/JPL-Caltech 
  
 The space rock will be no closer than about 10 times the distance between the Earth and moon. (The average distance between the Earth and moon is about 238,855 miles, or about 384,400 km.) 
  
 Asteroid 2002 AJ129 is a mid-size asteroid that is somewhere between 0.3 miles and 0.75 miles (0.5 to 1.2 kilometers) across. It was discovered on Jan. 15, 2002 by astronomers with a then-NASA-sponsored Near Earth Asteroid Tracking project at the Maui Space Surveillance Site on Haleakala, Hawaii. 
  
 The asteroid's unusually fast speed was likely caused by a its orbit, which brings 2002 AJ129 extremely close to the sun, whipping around the star at a range of 11 million miles (18 million km), NASA officials said. 
  
 You can see live views of asteroid 2002 AJ129 today here at the Virtual Telescope Project website here at 6 p.m. EST (2300 GMT). 
  
 Email Tariq Malik at tmalik@space.com or follow him @tariqjmalik and Google+. Follow us @Spacedotcom, Facebook and Google+. Original article on Space.com. |||||
Celebrate the end of the work week and continued survival of our planet Friday with a glance up at the sky. There, you could get a glimpse of an asteroid whipping past Earth at a distance of 39,000 miles—roughly five times closer to us than the moon—around 5:30pm EST. Only discovered on Sunday, the asteroid known as 2018 CB is believed to be 50 to 130 feet wide, making it bigger than the one that caused such a stir when it landed in Chelyabinsk, Russia, in 2013, notes the LA Times. This one won't hit Earth, but it's "a reminder that asteroids can pass very close to our planet and it’s important that we find these objects when they do get close," Paul Chodas of the Center for Near-Earth Object Studies at NASA's Jet Propulsion Laboratory tells the Guardian. The asteroid—spotted by astronomers at the Catalina Sky Survey in Arizona—will actually be the third to zip near Earth this week. While eyes were glued to SpaceX's Tuesday rocket launch, an asteroid estimated to be 50 to 100 feet wide came within 114,000 miles of Earth, roughly half the distance to the moon, reports Astronomy. Dubbed 2018 CC, it was discovered at the same time as 2018 CB, meaning we had only two days' notice of its arrival. A third asteroid passed within 2.6 million miles of Earth on Sunday, per Space.com. If any of these visits freak you out, you might want to start preparing now for 2029. That's when a monster 1,000-foot-wide asteroid will pass Earth at one-tenth of the distance to the moon, per the Guardian. (A skull-shaped asteroid is still to come in 2018.)