Related by context. Frequent words. (Click for all words.) 39 quark gluon plasma 37 fiery gases 36 cometary 35 comet dust 35 Stardust spacecraft 34 superheated gases 33 digitized 33 anonymised 33 imaged 33 comet nucleus 33 excavated 32 sequenced 32 genetically matched 32 iPS cell 32 lunar surface 31 introns 31 sampled 31 comet Hartley 2 31 reused 31 duplicated 30 parameterized 30 genetically identical 30 preserved 30 predated 30 collected 30 unique identifiers 29 lunar missions 29 oversaw 29 Peaceful Uses 29 cloned 29 iPS 29 methylated 29 analyzed 29 exact replicas 29 digitally manipulated 29 verified 29 recombined 29 original 29 Soviet cosmonaut Yuri Gagarin 28 downloaded 28 copyrightable 28 planetary science 28 microfilmed 28 instrumental 28 duplicates 28 uploaded 28 SPACEHAB 28 shuttle disintegrated 28 processed 28 supervised 28 predating 27 existed 27 identifiers 27 outer planets 27 produced 27 precursors 27 Cassini Huygens 27 sieved 27 authenticated 27 recreated 27 created 26 overseen 26 synthesized 26 predate 26 seminal 26 subsequent 26 submitted 26 securely stored 26 requested 26 recorded 26 completed 26 cataloged 26 oversee 26 Comet Tempel 1 26 Saturn moons 26 lunar lander 26 birthed 26 comet 25 centralized repository 25 forestalled 25 prior 25 yielded 25 Columbia disintegrated 25 matched 25 traces 25 unrepeatable 25 Earth magnetosphere 25 anonymized 25 barcoded 25 sediment samples 25 collaborated 25 obtained 25 corroborated 25 retrievable 25 replicated 25 deleted 25 visualized 25 predates 25 reproduced 25 profoundly influenced 25 compilation