Cosmic Strings
Hypothetical 1D subatomic-width topological line defects that may have formed during GUT phase transitions in the early universe.
Governing formula
Linear Mass Density G μ / c² ~ 10⁻⁶
SI unit
1D Topological Defect
In depth
Cosmic strings carry immense mass density (~10¹⁷ kg per meter). Their intense gravitational fields produce characteristic double-image gravitational lensing signatures and cosmic microwave background temperature discontinuities.
Examples in the real world
Searching for double gravitational lensing signatures of background galaxies caused by cosmic strings.