| 1 | interstellar medium | ISM | 165 | 9 | 2.001434 | 9607106,9607093,etc |
| 2 | cosmic microwave background | CMB | 87 | 8 | 1.001638 | 9607166,9607122,etc |
| 3 | cold dark matter | CDM | 89 | 8 | 1.001494 | 9607010,9607088,etc |
| 4 | hubble space telescope | HST | 77 | 6 | 2.001285 | 9607056,9607121,etc |
| 5 | point spread function | PSF | 30 | 6 | 2.000262 | 9607048,9607170,etc |
| 6 | gamma ray burst | GRB | 248 | 6 | 2.01071 | 9607131,9607054,etc |
| 7 | nasa/ipac extragalactic database | NED | 8 | 5 | 1.000125 | 9607012,9607063,etc |
| 8 | colour magnitude diagram | CMD | 71 | 4 | 2.004947 | 9607081,9607091,etc |
| 9 | luminosity function | LF | 36 | 4 | 2.001184 | 9607081,9607176,etc |
| 10 | large magellanic cloud | LMC | 78 | 4 | 2.004779 | 9607053,9607040,etc |
| 11 | active galactic nucleus | AGN | 47 | 4 | 1.002377 | 9607087,9607140,etc |
| 12 | very large array | VLA | 33 | 4 | 1.001427 | 9607164,9607067,etc |
| 13 | spectral energy distribution | SED | 14 | 3 | 2.000519 | 9607154,9607145,etc |
| 14 | red giant branch | RGB | 17 | 3 | 2.000546 | 9607081,9607078,etc |
| 15 | solid state photomultiplier | SSPM | 52 | 3 | 1.006156 | 9607108,9607107,etc |
| 16 | hubble deep field | HDF | 84 | 3 | 2.002084 | 9607056,9607174,etc |
| 17 | star formation rate | SFR | 28 | 3 | 2.000253 | 9607048,9607121,etc |
| 18 | intracluster medium | ICM | 27 | 3 | 2.000836 | 9607063,9607126,etc |
| 19 | total variation diminishing | TVD | 7 | 3 | 1.000194 | 9607141,9607049,etc |
| 20 | multiple mirror telescope | MMT | 13 | 3 | 1.000443 | 9607164,9607145,etc |
| 21 | cosmic ray | CR | 147 | 3 | 2.010854 | 9607059,9607174,etc |
| 22 | compton gamma ray observatory | CGRO | 6 | 3 | 1.000366 | 9607158,9607120,etc |