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Cosmos Atom
Stardust trapped in Antarctic ice reveals tens of thousands of years of Solar System’s past
The Conversation Africa·31d ago·neutral
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We can study the cosmos by tracing debris from exploding stars right here on Earth.
Alfred-Wegener-Institute/Esther Horvath When you think of outer space, you’re likely picturing stars, planets and moons. But much of space is filled with clouds of gas, plasma and stardust – known a… [+5332 chars]
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Published
May 13, 2026, 11:01 AM
Author
Dominik Koll, Honorary Lecturer, Nuclear Physics, Australian National University
Source
The Conversation Africa
Frequently asked · Cosmos Atom
Does the discovery of negative dwell time imply time travel is possible?
No, researchers emphasize that the phenomenon is consistent with standard quantum mechanics and does not involve transmitting information backward in time.
What is a 'toy universe' in the context of physics research?
It is a simplified, lab-based system, such as an ultracold-atom setup, used by scientists to model and study complex physical concepts like the nature of time.
How do quantum interactions relate to the flow of time?
Some physicists propose that time is not a fundamental given but rather an emergent property arising from quantum correlations and changes in entropy.