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Adam Walton explores recent discoveries and new technological developments in astronomy.

Dr Edward Gomez from Cardiff University's School of Physics and Astronomy describes a planetary collision in a distant solar system.

Dr Keiko Kokeyama explains her role in the development of two new gravitational wave detectors.

Plus Professor Erminia Calabrese tells us all about the LiteBIRD mission, a landmark space telescope using Cardiff University technology and expertise to find out more about the earliest stages of the universe and how it was created over 13.7 billion years ago.

Produced by Stuart Russell.