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  • Asteroid defense: Scanning the sky for threats from space

     Pernia updated 2 weeks, 6 days ago 2 Members · 2 Posts
  • Japo_Japo

    September 23, 2021 at 8:04 am

    Apophis was discovered on June 19, 2004, by Roy A. Tucker, David J. Tholen and Fabrizio Bernardi whilst working at the Kitt Peak National Observatory. The object was identified at the time as 2004 MN4. Though the team was only able to observe the asteroid for two days as a result of technical issues and unfavorable weather conditions, further observations quickly revealed a wealth of details about the asteroid.

    In 2005, the asteroid was renamed “Apophis” after the Greek name for an ancient Egyptian representation of evil, a serpent that dwells in darkness and frequently attempts to devour the sun-god Ra as he makes his nightly passage across the sky.

    In the same year that Apophis received its new moniker, Binzel was part of a team that used reconnaissance telescopic observations to measure the color properties of Apophis and determine its composition. The group found that the asteroid resembles the most common class of meteorites known as “ordinary chondrites,” which are composed mostly of stone and silicates.

    Classified as an “S-Type” or stoney-type asteroid, according to NASA, Apophis also contains a mix of metals like nickel and iron. Its shape is believed to be elongated and comprising of two lobes  —  almost like a rocky space peanut.

  • Pernia

    September 24, 2021 at 3:15 pm

    Last year, it was forecasted that an asteroid will pass by earth and there were chances that it might hit earth. what are your thoughts on that?

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