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A12   SCIENCE
                   Tuesday 30 augusT 2022

                                                                      NASA scrubs launch of new moon

                                                                      rocket after engine problem



                                                                                                                                on Friday, Sarafin said, “We
                                                                                                                                really need time to look at
                                                                                                                                all  the  information,  all  the
                                                                                                                                data. We’re going to play
                                                                                                                                all nine innings here.”
                                                                                                                                Even  though  no  one  was
                                                                                                                                on  board,  thousands  of
                                                                                                                                people jammed the coast
                                                                                                                                to see the rocket soar. Vice
                                                                                                                                President  Kamala  Harris
                                                                                                                                and  Apollo  10  astronaut
                                                                                                                                Tom  Stafford  were  among
                                                                                                                                the VIPs who arrived.
                                                                                                                                Assuming  the  shakedown
                                                                       NASA’s new moon rocket sits on Launch Pad 39-B minutes   flight  goes  well,  astronauts
                                                                      after the launch was scrubbed, Monday, Aug. 29, 2022, in
                                                                      Cape Canaveral, Fla.                                      will  climb  aboard  for  the
                                                                                                               Associated Press   second   Artemis   mission
                                                                                                                                and  fly  around  the  moon
                                                                      By MARCIA DUNN               Sarafin  said  the  fault  did  and back as soon as 2024.
                                                                      AP Aerospace Writer          not appear to be with the  A two-person lunar landing
                                                                      CAPE    CANAVERAL,     Fla.  engine  itself  but  with  the  could follow by the end of
                                                                      (AP) — NASA called off the  plumbing leading to it.       2025.
                                                                      launch  of  its  mighty  new  Complicating  matters,  as  The problems seen Monday
                                                                      moon  rocket  on  its  debut  engineers  were  trying  to  were reminiscent of NASA’s
                                                                      flight  with  three  test  dum-  troubleshoot  that  problem  space shuttle era, when hy-
                                                                      mies  aboard  Monday  af-    on the launch pad, yet an-   drogen fuel leaks disrupted
                                                                      ter  a  last-minute  cascade  other hydrogen leak devel-  countdowns  and  delayed
                                                                      of problems culminating in  oped,  this  one  involving  a  a string of launches back in
                                                                      unexplained  trouble  relat-  vent valve higher up on the  1990.
                                                                      ed to an engine.             rocket, Sarafin said.        Later in the morning, NASA
                                                                      The  next  launch  attempt  “This is a very complicated  also  officials  spotted  what
                                                                      will  not  take  place  until  machine,  a  very  compli-  they  feared  was  a  crack
                                                                      Friday  at  the  earliest  and  cated system, and all those  or  some  other  defect  on
                                                                      could  be  delayed  until  things  have  to  work,  and  the  core  stage  —  the  big
                                                                      mid-September or later.      you don’t want to light the  orange  fuel  tank  with  four
                                                                      The  mission  will  be  the  first  candle  until  it’s  ready  to  main  engines  on  it  —  but
                                                                      flight  in  NASA’s  Artemis  go,” said NASA Administra-   they later said it appeared
                                                                      project, a quest to put as-  tor Bill Nelson.             to be just a buildup of frost
                                                                      tronauts back on the moon  Referring to launch delays,  in a crevice of the insulat-
                                                                      for  the  first  time  since  the  he said: “It’s just part of the  ing foam.
                                                                      Apollo  program  ended  50  space business and it’s part  Launch  director  Charlie
                                                                      years ago.                   of, particularly, a test flight.”  Blackwell-Thompson   and
                                                                      As precious minutes ticked  The rocket was set to lift off  her team also had to deal
                                                                      away  Monday  morning,  on a flight to propel a crew  with  sluggish  communica-
                                                                      NASA  repeatedly  stopped  capsule  into  orbit  around  tion  between  the  Orion
                                                                      and  started  the  fueling  of  the moon. The six-week mis-  capsule  and  launch  con-
                                                                      the  Space  Launch  System  sion was scheduled to end  trol.  The  problem  required
                                                                      rocket  because  of  a  leak  with  the  capsule  returning  what  turned  out  to  be  a
                                                                      of  highly  explosive  hydro-  to Earth in a splashdown in  simple fix.
                                                                      gen,  eventually  succeed-   the Pacific in October.      Even if there had been no
                                                                      ing  in  reducing  the  seep-  The  322-foot  (98-meter)  technical  snags,  thunder-
                                                                      age.  The  leak  happened  spaceship is the most pow-     storms  ultimately  would
                                                                      in the same place that saw  erful  rocket  ever  built  by  have  prevented  a  liftoff,
                                                                      seepage during a dress re-   NASA,  out-muscling  even  NASA said.
                                                                      hearsal in the spring.       the Saturn V that took the  Dark clouds and rain gath-
                                                                      The fueling already was run-  Apollo  astronauts  to  the  ered  over  the  launch  site
                                                                      ning nearly an hour late be-  moon.                       as soon as the countdown
                                                                      cause of thunderstorms off  The dummies inside the Ori-   was  halted,  and  thunder
                                                                      Florida’s  Kennedy  Space  on capsule were fitted with  echoed across the coast.q
                                                                      Center.                      sensors  to  measure  vibra-
                                                                      Then,  NASA  ran  into  new  tion,  cosmic  radiation  and
                                                                      trouble when it was unable  other conditions during the
                                                                      to properly chill one of the  shakedown flight, meant to
                                                                      rocket’s four main engines,  stress-test  the  spacecraft
                                                                      officials   said.   Engineers  and  push  it  to  its  limits  in
                                                                      struggled  to  pinpoint  the  ways that would never be
                                                                      source of the problem well  attempted if humans were
                                                                      after the launch postpone-   aboard.
                                                                      ment was announced.          Asked about the possibility
                                                                      Mission   manager     Mike  of another launch attempt      facebook.com/arubatoday/
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