Gravitational acceleration of anti-matter is close to that of matter on Earth and scientists are now working to measure it accurately.
Experiments conducted by the Antihydrogen Laser Physics Apparatus (ALPHA) collaboration at the European Center for Nuclear Research (CERN) in Geneva, Switzerland, have shown that antihydrogen particles, too are pulled downward by gravity and do not levitate as some physicists suggest a press release said.
Antihydrogen is the simplest antimatter particle that we know exists. The opposite of hydrogen contains antimatter components such as an antiproton, a negatively charged proton, and a positron, a positively charged electron.
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