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Today in Security from Wired. This
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NASA is Protecting Its Precious
1:24
Asteroid Bennu Sample The
1:26
OSIRIS-REx capsule containing a treasure trove
1:28
of space rocks has now
1:31
arrived at Johnson Space Center, where
1:33
scientists will gingerly unpack it. By
1:36
Ramin Skiba. On
1:39
Sunday, a capsule carrying a one-of-a-kind
1:41
sample from the near-Earth asteroid Bennu
1:44
careened through the atmosphere and landed in the
1:46
Utah desert. But the OSIRIS-REx
1:48
mission isn't quite over. That precious
1:51
cargo needs to be kept safe, then
1:53
carefully opened one step at a time before
1:55
any science can be done. Technicians
1:58
at NASA's Johnson Space Center Space Center
2:01
in Houston will now begin dismantling the
2:03
capsule piece by piece to get down
2:05
to an interior canister containing the asteroid
2:07
sample. The methodical process
2:09
is so that someone doesn't accidentally
2:11
harm the canister or compromise future
2:14
scientific research. We are
2:16
really excited and impatient to see
2:18
the sample, but we're patient enough
2:20
to open it progressively and ensure
2:22
it's safe and pristine, says Pierre
2:24
Hanakur, a co-investigator in the OSIRIS-REx
2:27
collaboration. He's a member of
2:29
the Quick Look team at Johnson that will
2:31
do the initial imaging and chemical analysis of
2:33
any fine particles that are clinging to the
2:35
outside of the canister. Inside
2:37
that canister could hold as much as
2:40
9 ounces or 250 grams of space
2:42
rocks and dust. Bennu
2:44
is a lifeless rock, and Dante
2:46
Loretta, a planetary scientist and head
2:49
of the OSIRIS-REx team, emphasizes that
2:51
they're not expecting to find biological
2:53
material. No life forms that
2:56
we know of could survive that kind of
2:58
environment. We're more worried about
3:00
Earth biology contaminating the sample, he
3:02
said at a NASA post-landing press
3:04
conference on Sunday. Still,
3:06
Bennu is a carbon-rich asteroid that has
3:08
been around for billions of years and
3:11
could reveal information about the assembly of
3:13
rocky planets, including Earth in the early
3:15
solar system. After
3:17
a pulse-pounding descent during which the atmosphere
3:19
heated the capsule to a scorching 5,000
3:22
degrees Fahrenheit, it touched down charred
3:24
but intact at 852 a.m. Mountain
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code wired. Military
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personnel were charged with checking that
4:52
no unexploded ordnance lay within the
4:54
landing area and that no toxic
4:56
gases were emanating from the still
4:58
hot craft. The NASA
5:00
recovery team began by taking samples of
5:02
the desert ground and atmosphere where the
5:04
capsule landed. Then they gingerly
5:07
loaded it into a helicopter and
5:09
transported it to a temporary clean room and
5:11
a hanger on the training range. In
5:14
the clean room personnel wore bunny
5:16
suits covering their clothes, shoes, and
5:18
hair to ensure that fabric fibers,
5:20
hair, and skin cells didn't contaminate
5:23
the container. They opened the
5:25
top of the capsule and conducted a
5:27
nitrogen purge, pumping in gas
5:29
to make sure that contaminants like
5:31
oxygen, moisture, and earthly bacteria don't
5:33
somehow make their way inside. On
5:36
Monday they flew the partially opened
5:38
capsule on a Boeing transport aircraft
5:40
to a clean room at Johnson
5:43
Space Center's curation facility. There
5:45
they'll continue taking apart the capsule over the
5:47
next few days. The interior canister
5:49
will be moved to a glove box,
5:52
a sealed container filled with hydrogen that
5:54
technicians can access only by sticking their
5:57
gloved hands through a partition. They
5:59
will also remove the collector head of the
6:01
robotic arm that snagged the sample and
6:03
place it in another dedicated glove box.
6:07
On October 11th, NASA plans a public
6:09
reveal of what's inside the canister. While
6:12
it will take some time to do
6:14
in-depth studies of that main sample, the
6:16
reveal may include HanaCorp's team's preliminary findings
6:18
about dust particles on the canister's exterior.
6:21
This dust would have attached to the canister in 2020,
6:25
when the OSIRIS-REx spacecraft grabbed the sample
6:27
and nearly spilled it into space. Once
6:30
the canister is finally open, the curatorial
6:32
team at Johnson plans to divvy up
6:34
the valuable rocks among some 200 scientists
6:38
worldwide. "'These samples are
6:40
an amazing treasure trove for generations
6:42
of scientists,' said Eileen Stansbury, a
6:45
chief scientist at Johnson during Sunday's news
6:47
conference. "'If all goes well,
6:49
those samples will last for decades and
6:51
can be used as new analysis tools
6:54
are developed.'" A half-century
6:56
after the Apollo team, scientists are still
6:58
doing research using lunar regolith samples, like
7:00
for a recent study about growing plants
7:02
on the moon. OSIRIS-REx
7:05
is NASA's first asteroid sample return,
7:07
and the capsule is expected to
7:09
harbor a much larger sample than
7:11
those brought back by the Japanese
7:14
space agency's Hayabusa missions, which visited
7:16
the asteroids Ryugu and Itakawa. NASA
7:19
has more sample return projects in the works.
7:22
That includes collaborating with Japan's MMX mission,
7:24
which will launch next year to visit
7:26
the Martian moon Phobos and return a
7:29
sample in 2029. NASA
7:31
will also use the Artemis program's planned
7:33
lunar landing in 2026 to dig up
7:35
new moon samples, and the
7:37
agency intends to bring back regolith from Mars,
7:40
which is being collected by the Perseverance rover.
7:44
Thanks for listening to WIRED. I'm Zee
7:46
Groveson, and for more stories just like this
7:48
one, visit us at wired.com. Subscribe
7:54
everywhere you listen to podcasts,
7:56
and get more science news
7:58
at wired.com/science.
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