A massive meteorite that has been hidden in a basement for more than 20 years has been rediscovered.
The 4.5 billion-year-old Huckitta meteorite, dug up from a Northern Territory cattle station in 1937, was put in the basement of the South Australian Museum’s Science Centre during major renovations in 1998-2000.
It is being moved from its storage to the Planetarium at Mawson Lakes, SA, where it will go on display once social gatherings begin again.
SA Museum senior collections manager Ben McHenry said touching the cold, hard meteorite is “quite a thrill”.
“You’re touching the oldest thing that you’ll ever touch in your life, something 4.5 billion years old from the formation of our Solar System,” he said.
“Meteorites are pretty amazing things. Before we started sending objects into outer space and landed on the moon and things like that, the only way we knew what the Solar System was made of was by analysing meteorites.”
A slice, taken from the meteorite with great difficulty in 1938, is still on display in the museum’s Meteorite Gallery. It took more than five days to make the two cuts.
The Huckitta meteorite is a rare type of metallic* meteorite called a “pallasite”, one of only 95 in the world.
“It’s a bit like a Christmas pudding, where the nickel-iron is the batter,” Mr McHenry said. “And it’s full of crystals of olivine, a silicate mineral, the fruit mixed through the metal.”
These ingredients are from the asteroid belt between Mars and Jupiter.
“So when the solar system was formed and things were coalescing* out of the dust cloud, you had the gravity of Jupiter and the gravity of the Sun pulling in this one place,” Mr McHenry said.
“The lumps didn’t coalesce into larger pieces that could eventually form a planet like Earth with a nickel-iron core.”
Some of the world’s most important science collections include samples of the famous Huckitta meteorite including at Fort Worth, Texas, US; Arizona State University, Tempe, US; the Natural History Museum, London, UK; Max Planck Institute, Mainz, Germany; and the National Museum of Natural History, Washington, D.C, US.
Before its removal from the NT, it was a landmark used as a cattle mustering* point and known by locals as “The Black Rock”.
- A meteoroid is a chunk or boulder of space rock.
- It is called a meteor if it enters Earth’s atmosphere and vaporises or burns up.
- If it doesn’t completely vaporise and lands on Earth’s surface, it is called a meteorite.
- There are millions of meteors flying through Earth’s atmosphere every day. Almost all burn up and only occasionally does one survive to become a meteorite.
- metallic: made from metal
- coalescing: coming together to form one mass
- mustering: herding into one spot
- How long ago did the meteorite form?
- Where will we soon be able to see it displayed?
- Where did the ingredients of the Huckitta meteorite originally come from?
- What was the meteorite called when it was still in the ground in the NT?
- Define the three different terms: meteor, meteorite, meteoroid.
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1. Create a timeline
A timeline can be used to show the major events that happen in a given time period. Create a timeline that shows the major events that have happened in the lifespan of this meteorite.
Draw a horizontal line across your page. At one end mark 4.5 billion years ago when the meteorite was formed. As there is no information about what happened with this meteorite for a long period of time (approximately 4.5 billion years) you can put a ‘time break’ in your timeline indicating the period of time that is missing and complete the rest of the timeline using an appropriate scale to show the other events. Your timeline should finish sometime in the near future when the meteorite will be on display.
Time: allow 20 minutes to complete this activity
Curriculum Links: English, Science, Humanities and Social Science, Mathematics
Write a museum label
This meteorite is due to go on display when it is safe to have social gatherings again. The curators of the museum need some help to write a label to attach to the display explaining what the meteorite is. Your label would also need to explain, where it was found, what it is made of and where it has been for the last 20 years. It will need to be written as a succinct paragraph.
Time: allow 20 minutes to complete this activity
Curriculum Links: English, Science, Humanities and Social Science – History
With a partner see if you can identify all the doing words/verbs in this text. Highlight them in yellow and then make a list of them all down your page. Now see if you and your partner can come up with a synonym for the chosen verb. Make sure it still makes sense in the context it was taken from.
Try to replace some of the original verbs with your synonyms and discuss if any are better and why.
HAVE YOUR SAY: Have you seen a meteor or meteorite? Where? When What did it look like?
No one-word answers. Use full sentences to explain your thinking. No comments will be published until approved by editors.