'Fireball' meteorite that fell to Earth in 2018 reveals its secrets

a425couple wrote on 29/10/20 00:39:
On 10/28/2020 12:18 AM, Daniel65 wrote:
a425couple wrote on 28/10/20 06:59:
from
https://www.cnn.com/2020/10/27/world...rnd/index.html


'Fireball' meteorite that fell to Earth in 2018 reveals its secrets
Ashley Strickland-Profile-Image
By Ashley Strickland, CNN

Updated 1:52 PM ET, Tue October 27, 2020
Watch bright flash light up Michigan sky
Watch bright flash light up Michigan sky 00:56

(CNN)A 12-million-year-old meteorite that fell to Earth in January
2018 is covered in more than 2,600 organic compounds, according to
new research. Meteorites such as this one likely acted as messengers
early in Earth's history, delivering the building blocks of life, the
researchers said.

Only 12 million years old!! Were they chips off chips off some bigger
object??

https://www.theguardian.com/us-news/...f-solar-system


The Hamburg meteorite fall: Fireball trajectory, orbit, and ...
onlinelibrary.wiley.com › doi › abs › maps
Aug 11, 2019 — The Hamburg (H4) meteorite fell on 17 January 2018 at
01:08 UT approximately 10 km north of Ann Arbor, Michigan. More than two
dozen ...
by PG Brown · ‎2019 · ‎Cited by 3 · ‎Related articles

Michigan fireball meteorite fragments could shed light on ...
www.theguardian.com › us-news › oct › michigan-fire...
19 hours ago — A fireball that struck near Hamburg, Michigan, in 2018
could offer new insights into the history of the solar system,
researchers have said.

Meteorite hunter finds 3 rocks in Hamburg Township
www.freep.com › news › local › michigan › 2018/01/18
Jan 18, 2018 — NASA scientists say the meteor broke up about 20 miles
over Earth and showered most of its fragments along a 2½-mile swath in
Hamburg ...

NASA: Meteorites probably near Hamburg Township
www.freep.com › news › local › michigan › 2018/01/17
Jan 17, 2018 — Meteorites, perhaps 1-2 ounces in size, are likely spread
over a 2½-mile west of the hamlet of Hamburg in Hamburg Township, said
Bill Cooke, ...

Meteorite Falls | Hamburg, Michigan - ARES
ares.jsc.nasa.gov › meteorite-falls › events › hamburg-...
Jan 17, 2018 — SUMMARY. This meteorite fall occurred at 8:08 PM local
time on 16 January 2018, or 17 Jan 2018 0108 UTC. Residents of Detroit,
MI and ...

Meteoritical Bulletin: Entry for Hamburg
www.lpi.usra.edu › meteor › metbull
Hamburg 42°26.82'N, 83°50.5'W ... The meteorite appears very weakly
shocked. ... This is 1 of 12 approved meteorites from Michigan, United
States (plus 1 ...


from the guardian citation:
"Now Heck and colleagues have released an in-depth report examining
three of the meteorite pieces housed at the Field museum.

The results reveal that the space rock is of a type known as an H4
chondrite – a relatively rare subtype of a class of meteorites common in
collections.

“[These] are only 4% of all the falls today,� said Heck.

Heck added that initial analysis of the space rock revealed that the
meteorite contained 2,600 different organic compounds. While an even
greater array have been found in other meteorites, Heck said the
findings add weight to the much-mooted idea that meteorites might have
played a role in kickstarting life on Earth. ---

“We found [this meteorite] was ejected 12m years ago from its parent
asteroid� said Heck, noting this is the first evidence of that
particular event.

And analysis of levels of argon in the meteorite, produced by
radioactive decay, shed light on the history of asteroid itself, with
Heck noting the element is released when impacts occur. “We found
nothing else happened since the [parent asteroid] formed 4.5bn years
ago,� said Heck. “It was pretty much dull on that asteroid.� --

“By looking at the minerals and age and chemistry of [meteorites] we can
look back in time to understand how its parent asteroid body relates to
other asteroids and small bodies we know formed at the same time within
the first few million years after the sun formed,� she said.

(So they are claiming this asteroid was formed 4.5 B years ago,
about same time the rest of our solar system, and sun was.)

So formed 4.5 billion years ago, then chipped off the parent rock 12
million years ago as previously mentioned.
--
Daniel