MACHOs and Micro-lensing
In this Starcast, MACHOs and microlensing are the primary tools discussed for mapping the cold, dark, and lonely objects that make up the majority of the universe. Mike Lewinski explains that while traditional gravitational lenses are stable over centuries, microlensing involves smaller objects like isolated black holes or free-floating planets that temporarily brighten distant stars.
Episode Links:
Microlensing article:
https://www.supercluster.com/editorial/microlensing-is-revealing-a-hidden-universe
Einstein Rings:
https://www.space.com/james-webb-space-telescope-einstein-ring-gravitationally-lensed
Twin Quasar Image:
https://en.wikipedia.org/wiki/Twin_Quasar#/media/File:QSO_B0957+0561.jpg
Mike’s YouTube channel:
https://youtube.com/@mikelewinski?si=i1y6HHpC0x00CqQN
TeSeek Review: https://youtu.be/7ERAH_QEsQA?si=_Cvndj2zgfEunO-4