3 sources checked · 2 source groups included · 1h ago
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Oldest known asteroid impact on Earth dated to 3 billion years
The oldest known impact structure on Earth has been confirmed in outback Australia.
1 Left2 Center0 Right
Still watching.Optics is waiting for a cleaner match before calling the split.
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As of June 23, 2026 at 10:02 PM, this is how Optics News reads the wording differences in this story.
What happenedCurtin University researchers have determined the most precise age yet for the oldest known impact crater on Earth, providing new insight into how meteorite strikes shaped the planet during its earliest history.
The headline splitThe left frames it as "Earth’s oldest crater really is over 3 billion years old, new study confirms". The center frames it as "'Unequivocal evidence' of the age of Earth's oldest impact crater turns out to be off by...".
Match confidenceMedium confidence. 3 sources across 2 bias buckets. Useful framing signal — check the source list before sharing.
Same-event confidenceMedium
3 sources across 2 bias buckets agree on the event.
Framing confidenceModerate
59/99 — meaningful wording shift across the spectrum.
WHAT EACH SIDE EMPHASIZED
Left / center-leftEarth’s oldest crater really is over 3 billion years old, new study confirms
The Conversation (AU) · Center-left · News report
CenterOldest known asteroid impact on Earth dated to 3 billion years
Phys.org · Center · News report
Right / center-rightNo matching source in this bucket yet.
Oldest known asteroid impact on Earth dated to 3 billion years
knownasteroidimpactdated
Curtin University researchers have determined the most precise age yet for the oldest known impact crater on Earth, providing new insight into how meteorite strikes shaped the planet during...
'Unequivocal evidence' of the age of Earth's oldest impact crater turns out to be off by half a billion years
A new study updates the age of Earth's oldest known meteorite impact crater, the North Pole Dome crater, which scientists previously claimed was 3.47 billion years old.
