As the meteorite was falling toward our planet on January 16, 2018, at speeds reaching 57,936 km per hour, its bright fireball could be seen in parts of the USA midwest and portions of Ontario.
"The weather radar is for detecting hail and rain", said Philip Heck, lead study author and co-professor at the University of Chicago's Field Museum in Chicago.
"It will be an exciting day when we get the right kind of fireball and can go out, track down the falling stone and analyze it to find out where it came from", she said.
Its chemical composition remained largely unalteredeven after landing on Earth's surface.
But the Hamburg meteorologist - harvested more than two days after it landed - is the most important example of an unchanging meteorological meteorologist. In under 48 hours, a private meteorite hunter named Robert Ward found a 0.8-ounce (22-gram) chunk of meteorite resting on the frozen Strawberry Lake near Hamburg, Michigan.
"Hamburg is one of the very few meteorites that was quickly recovered from a frozen surface and delivered to scientific institutions, and that is what makes this meteorite remarkable". It is very fluid. "We were able to see that not much of the minerals had been changed, and then we found that it contained cargo full of extraterrestrial organic compounds", Heck said.
The findings have been published in Meteoritics & Planetary Science journal.
"When I arrived at Metroit Field, I spent the whole Saturday analyzing it, because I was curious to know what kind of meteor it was and what it contained", said Jenica Greer, a study colleague and a doctoral student. The University of Chicago and the University of Chicago in the statement.
"With every meteorite that falls, there is a chance that something completely new and completely unexpected happens".
Here is what they learned.
Because The Hamburg meteorite recovered rapidly Experienced Minimal pollution, but HeckContaminated samples are samples collected directly from an asteroid. This means that it does not take long for the meteorite to become atmospheric, for its metals to begin to rust, for water to escape through cracks and contaminate it, or for its minerals (such as olive) to be replaced.
The meteorite is 12 million-year-old and was collected soon after it fell on Earth in 2018.
Meteorology comes from an asteroid that formed 4.5 billion years ago, only about 20 million years after the formation of our solar system, Heck said. The large phase is an uncontaminated primitive alien organic compound, i.
The results reveal that the space rock is a type called H4 chondrite - a relatively rare subspecies of meteorite that is common in the collection.
"This meteorite shows a high diversity of organics, in that if somebody was interested in studying organics, this is not normally the type of meteorite that they would ask to look at", says Greer. "But there was so much excitement around it that everyone wanted to use their own technique for it, so we have an unusually comprehensive database for a meteorite".
Typically, carbonaceous chondrites are a thousand times richer in organics than H4 chondrites, Heck said. "Meteorites fell to our planet throughout Earth's history also before life formed and possibly delivered some of the building blocks for life onto Earth".
Organic matter in the meteorite was once heated to 1,200 degrees Fahrenheit while it was still part of its measured storm.
"I have personally seen how many organic compounds are still present in this metamorphosis despite its thermal transformation", Heck said.
The researchers found hydrocarbons, as well as compounds containing sulphur and nitrogen.
"There is still a lot of work to be done to better understand the different chemical pathways and different processes of different compounds", Heck said. The first sample from the star-studded Ryugu will be delivered to Earth by Hayabus 2 in December, while the Benu sample will return in 2023.
Heck, who is also an associate professor at the University of Chicago, said, "This research is a attractive example of how citizen scientists like Boudreaux and Ward can work with scientific institutions to make meaningful contributions to science".