To our current knowledge, there are no stars made of antihydrogen in our observable universe. According to standard cosmological models, the Big Bang should have produced equal amounts of matter and antimatter, which would have completely annihilated each other. Instead, a tiny, unexplained imbalance favored regular matter, leaving behind the universe we see today and creating what physicists call the baryon asymmetry problem.
If an antistar did exist, it would look identical to a normal star through an optical telescope, meaning astronomers must search for the collision boundary where its antimatter solar wind hits regular interstellar gas. This annihilation would produce a specific, continuous signal of high-energy gamma rays. In 2021, researchers analyzed a decade of data from the Fermi Gamma-ray Space Telescope to hunt for this exact signature. Out of nearly 5,800 sources, they found only 14 candidates that matched the profile, though it is highly probable these are just known anomalies like pulsars.
Based on this search, astrophysicists calculated that if antistars exist in our local galactic neighborhood, there is a maximum of roughly one for every 300,000 regular stars. For any antistar to survive and remain undetected, it would have to be isolated in regions devoid of normal matter, such as the vast intergalactic voids or ancient clusters in the galactic halo. Ultimately, no antistars have been confirmed, meaning they are either nonexistent or hiding in the emptiest reaches of space.
Reverse Time Dilation:
Richard Feynman proposed that antimatter, such as positrons, can be modeled mathematically as regular matter moving backward in time, represented by the temporal vector change t → -t. Reversing this temporal direction inverts both charge and parity, but the mass remains fundamentally positive. In the framework of General Relativity, gravity couples to a system’s total energy and momentum, dictated by the mass-energy equivalence E = mc². Because this energy value remains positive regardless of its temporal direction, antimatter curves spacetime and responds to gravity precisely like regular matter.
This theoretical deduction regarding antimatter and gravity was physically demonstrated in 2023 by the ALPHA collaboration at CERN. Physicists isolated antihydrogen atoms within a magnetic vacuum cylinder and then deactivated the containment field to observe their gravitational trajectory. The antimatter did not exhibit negative mass or fall upward; rather, it accelerated downward toward the center of the Earth at roughly 9.8 m/s². This confirmed that antimatter is fully subject to standard gravitational attraction.
If a hypothetical time machine utilized a localized reverse time dilation field, its macroscopic mechanics would perfectly align with these established physical laws. The structural components of the displacement field would retain positive mass and maintain their standard gravitational coupling, rather than transforming into gravitationally repulsive exotic matter. Consequently, the machine would conserve its momentum and remain firmly anchored within the gravitational well of the Earth, resting heavily on the laboratory floor as it moved backward through time instead of flying off into the vacuum of space.
plbbt!
~QS
~QS
