Scientists have achieved a significant breakthrough in understanding antimatter, a substance that was abundant during the Universe’s inception. This recent study revealed that both matter and antimatter respond similarly to gravity. The insight is pivotal in the ongoing efforts to decode the nature of the Universe and to understand why, post the Big Bang, matter prevailed over antimatter.
  

Key Points: 

1. Both matter and antimatter were created equally during the Big Bang; however, while matter is abundant, antimatter is now extremely rare.
2. New findings confirm that antimatter atoms fall downwards, consistent with how matter behaves in the presence of gravity.
3. Though matter dominated over antimatter after the Big Bang, the reasons remain one of physics’ grand enigmas. How they each respond to gravity might offer answers.
4. The experiments at Cern in Switzerland involved creating antimatter in a stable form, as most antimatter in the Universe exists only for fleeting moments.
5. The next phase of research aims to discern if antimatter falls at the exact same rate as matter, a discovery that could further illuminate the origins of the Universe.

Source: https://www.bbc.com/news/science-environment-66890649