From Big Think: Is it true, what goes up must come down? Don Lincoln explores the ALPHA collaboration’s use of CERN’s Antimatter Factory to test if antimatter might experience gravity in a manner opposite of ordinary matter. The conclusion: antimatter does not fall upward.

From Forbes, April 1, 2021: Don Lincoln explains one of the biggest mysteries of modern physics is the question of why we don’t see as much antimatter in the universe as ordinary matter. Scientists working at the CERN laboratory have announced that they have used lasers to slow the motion of antimatter, resulting in unprecedented capabilities to its properties.