| 1 | gravitational wave | GW | 609 | 22 | 2.002421 | 0302012,0302041,etc |
| 2 | general relativity | GR | 329 | 19 | 1.896395 | 0302003,0302112,etc |
| 3 | friedmann robertson walker | FRW | 148 | 16 | 1.250539 | 0304038,0304044,etc |
| 4 | anti de sitter | AdS | 114 | 11 | 1.547103 | 0302038,0302097,etc |
| 5 | innermost stable circular orbit | ISCO | 140 | 10 | 1.802998 | 0301025,0301112,etc |
| 6 | cosmic microwave background | CMB | 31 | 10 | 1.000282 | 0304038,0304093,etc |
| 7 | equation of state | EOS | 101 | 8 | 2.002176 | 0301011,0301112,etc |
| 8 | kaluza klein | KK | 167 | 8 | 1.501125 | 0303058,0303108,etc |
| 9 | laser interferometer space antenna | LISA | 99 | 7 | 1.573968 | 0302013,0302103,etc |
| 10 | cosmic microwave background radiation | CMBR | 49 | 7 | 1.714797 | 0303035,0303085,etc |
| 11 | signal to noise ratio | SNR | 217 | 7 | 2.003555 | 0306050,0306057,etc |
| 12 | post newtonian | PN | 112 | 6 | 2.000962 | 0301025,0301099,etc |
| 13 | electromagnetic | EM | 102 | 5 | 1.603115 | 0303085,0303089,etc |
| 14 | arnowitt deser misner | ADM | 82 | 5 | 1.401608 | 0306002,0306020,etc |
| 15 | parameterized post newtonian | PPN | 93 | 5 | 1.001319 | 0311020,0311021,etc |
| 16 | newman penrose | NP | 21 | 4 | 1.500426 | 0307022,0307121,etc |
| 17 | gravitational waves | GW | 124 | 4 | 2.002919 | 0308062,0308085,etc |
| 18 | general theory of relativity | GR | 37 | 4 | 1.000296 | 0311020,0311039,etc |
| 19 | very long baseline interferometry | VLBI | 10 | 4 | 1.000044 | 0311020,0311021,etc |
| 20 | lunar laser ranging | LLR | 105 | 4 | 1.003239 | 0311020,0311021,etc |
| 21 | strong equivalence principle | SEP | 56 | 4 | 1.001687 | 0311020,0311021,etc |
| 22 | ligo data analysis system | LDAS | 22 | 3 | 1.00184 | 0308024,0308043,etc |
| 23 | laser interferometer gravitational wave observatory | LIGO | 69 | 3 | 2.001504 | 0308024,0308050,etc |
| 24 | weak energy condition | WEC | 7 | 3 | 1.000155 | 0309003,0309013,etc |
| 25 | de sitter | dS | 57 | 3 | 2.003098 | 0309078,0309079,etc |
| 26 | schwarzschild de sitter | SdS | 32 | 3 | 2.00238 | 0309078,0309079,etc |
| 27 | laser astrometric test of relativity | LATOR | 147 | 3 | 2.001402 | 0311020,0311039,etc |
| 28 | international space station | ISS | 47 | 3 | 2.000436 | 0311020,0311039,etc |
| 29 | black holes | BH | 46 | 3 | 2.001485 | 0312015,0312084,etc |