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Moon

A Piece of a SpaceX Rocket Is On Track To Collide With the Far Side of the Moon (cbsnews.com) 35

Astronomers said this week that a piece of a Falcon 9 rocket that was launched in February 2015 is currently on a trajectory to collide with the moon in just a few weeks. CBS News reports: The rocket left from Florida's Cape Canaveral and launched NOAA's Deep Space Climate Observatory, a project that allows researchers to maintain real-time data for more accurate space weather alerts and forecasts. According to NOAA, having that data is "critical," as space weather events "have the potential to disrupt nearly every major public infrastructure system on Earth." During that deployment, Falcon 9's second stage, which provides it with a second boost to reach its desired orbit, ran out of fuel to return to Earth, according to meteorologist and Ars Technica space editor Eric Berger. The second stage has been orbiting Earth ever since, and now, according to data gathered by astronomers, it's on track to hit the moon.

Bill Gray, who writes the Project Pluto software that is used by both amateur and professional astronomers, gathered data from those space observers over the past few weeks to predict just when the impact will occur. Based on the information he gathered, there will be a "certain impact" with the far side of the moon on March 4, he said. The rocket stage is currently floating away from Earth and outside of the moon's orbit on a "chaotic" orbit, Gray said, but in the coming days, it's expected to turn around and head back towards Earth. It made a "close lunar flyby" on January 5, but March 4 is when its path and the moon's will cross.
Thankfully, there's no cause for concern, says Gray, noting that it's the "first unintentional case" of space junk hitting the moon that he's aware of. It may actually help researchers learn more about the moon's makeup if lunar orbiters are able to observe the crash site.

"If we can tell the [lunar orbiter] folks exactly where the crater is, they'll eventually pass over that spot and be able to see a very fresh impact crater and probably learn something about the geology (well, selenology) of that part of the moon," Gray said.
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A Piece of a SpaceX Rocket Is On Track To Collide With the Far Side of the Moon

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  • Iron sky... (Score:4, Funny)

    by Anonymous Coward on Saturday January 29, 2022 @02:13AM (#62217077)
    It will hit nazi moon base and start a world war.
    • its gonna kill elvis and jesus will speak american names in vein and god will no longer listen
    • The chance of it is so microscopic as to be essentially nonexistent, but it would be entertaining to see the fallout should it happen to crash into and destroy China's Yutu 2 lander on the far side.
    • Haha, that was my first cause for concern too. Thankfully we don't need to worry about that.
  • by oldgraybeard ( 2939809 ) on Saturday January 29, 2022 @02:14AM (#62217079)
    at their secret moon base on the dark side of the moon might get irritated if he hits one or drops some wreckage on their roof.
    • Re: (Score:3, Informative)

      by Anonymous Coward

      Minus 2 points for calling it the "dark" side of the moon.

      • There is no dark side of the Moon, really. As a matter of fact it's all dark.

      • there is no Earthshine on that side lf the moon. Have you ever been out on a moonless night? It's pretty dark.

        • by ceoyoyo ( 59147 )

          The Earth is a *lot* brighter in the moon's sky than the moon is in Earth's sky too. So it only gets properly dark on the near side during eclipses. The far side spends half the time in starlit darkness.

  • by Albinoman ( 584294 ) on Saturday January 29, 2022 @03:29AM (#62217167)
    Blue Origin wants to be part of the moon landing contract but cant attain orbit. Meanwhile, SpaceX gets to the moon accidentally.
    • Lol!! So true, first private launch to reach the moon. They should have a party at SpaceX. Iâ(TM)m guessing also happy itâ(TM)ll stay there and not come whipping around to Earth like a hammer.

    • Blue Origin wants to be part of the moon landing contract but cant attain orbit. Meanwhile, SpaceX gets to the moon accidentally.

      (Jeff) "Quit showing off, asshole."

      (Elon) "Hey man I swear, I didn't even say 'Hold My Bezos' that time.."

    • Actually how hard would it be for SpaceX to use it's reusable booster landing technology for landing on the moon? Seems like it would be easier based on gravity, but may harder given the lack of atmosphere. How much does the current landing system rely on air resistance? It has the grid fins for precision landing, but without those would it still be able to land at all?

      • The boosters do need air braking to slow down before landing on Earth, but landing on the Moon would not be using the same hardware anyway. The booster's main job is to launch from Earth into space so it's a mostly-empty fuel tank by the time it starts the landing sequence. A moon lander would probably be designed to start with full tanks at lunar orbit insertion, and since it never deals with Earth gravity it would have a much less powerful rocket engine. Some of the technology like control software is app

    • by hawk ( 1151 )

      I, for one, welcome our new space debris overlords!

  • If it survived the crash and landed right side up, it might prove a bit of a mystery for space-faring aliens.

    Where is that thing, anyway?

    • by Åke Malmgren ( 3402337 ) on Saturday January 29, 2022 @05:05AM (#62217241)
      https://www.whereisroadster.co... [whereisroadster.com]
      • by Toad-san ( 64810 )

        What a GREAT site! There's some serious (and regularly updating) astrophysical computations going on there!

        And hopefully that orbital animation is misleading, and there won't be any conflicts with Mars.

        • The orbital map doesn't show inclination, and massively overstates the size of the planets. They also need to be in the same place at the same time in order to collide. We know of tens of thousands of near Earth asteroids crossing our own orbit, yet big impacts are very rare. Plus, if it ever does hit, it's far from the first time we've unintentionally smashed something into Mars.
          • To be honest, I can't remember the last time I saw a Solar system diagram which didn't "massively overstate" the size of the planets (or "small bodies").

            Let's see. Consider an A4 printout of the Sun to Earth orbit. That would need to cover 150 million km in 297 mm of page, a little less than 2mm per million km. That would make the Sun a bit less than 2mm in diameter, and Earth about 24 micrometres across. That's about a quarter of an International Standard Human Hair across - just about visible to the una

    • by RockDoctor ( 15477 ) on Saturday January 29, 2022 @06:58AM (#62217365) Journal
      Check it at the JPL "Horizons" system https://ssd.jpl.nasa.gov/horiz... [nasa.gov] , searching for " SpaceX Roadster (spacecraft) (Tesla) ".

      ... which is giving essentially the same results as https://www.whereisroadster.co... [whereisroadster.com] ; it's a bit beyond the orbit of Mars at the moment. I think on it's 4th orbit? It's orbit osculates (is approximately mutually tangential) with Earth's orbit, but with a 1.53 year nominal orbit, it's unlikely to make a close approach to Earth for a long time into the future.

    • From another article I read on this, the impact will be at about 2.5 km/s (~9000 km/h). There ain't going to be anything standing upright after that.
  • Stephen Colbert wondered if Elon Musk was a super villain, and here Musk is bombing the moon.

    Where is James Bond when you need him?

  • Sloppily polluting the universe? Check.
  • Go and clean up his mess.
    • Go and clean up his mess.

      He is (accidentally) cleaning the mess. Crashing into the moon is the best thing that could have happened to the booster - one less piece of orbital debris floating around.

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