| Organic molecules in the interstellar medium, comets, and meteorites: a voyage from dark clouds to the early Earth P Ehrenfreund, SB Charnley Annual Review of Astronomy and Astrophysics 38 (1), 427-483, 2000 | 1226 | 2000 |
| Ultraviolet processing of interstellar ice analogs. I. Pure ices. PA Gerakines, WA Schutte, P Ehrenfreund Astronomy and Astrophysics, v. 312, p. 289-305 312, 289-305, 1996 | 653 | 1996 |
| An inventory of interstellar ices toward the embedded protostar W33A EL Gibb, DCB Whittet, WA Schutte, ACA Boogert, JE Chiar, P Ehrenfreund, ... The Astrophysical Journal 536 (1), 347, 2000 | 535 | 2000 |
| Cubesats: Cost-effective science and technology platforms for emerging and developing nations K Woellert, P Ehrenfreund, AJ Ricco, H Hertzfeld Advances in space Research 47 (4), 663-684, 2011 | 503 | 2011 |
| Organic compounds on comet 67P/Churyumov-Gerasimenko revealed by COSAC mass spectrometry F Goesmann, H Rosenbauer, JH Bredehöft, M Cabane, P Ehrenfreund, ... Science 349 (6247), aab0689, 2015 | 501 | 2015 |
| Detection of two interstellar absorption bands coincident with spectral features of C60+ BH Foing, P Ehrenfreund Nature 369 (6478), 296-298, 1994 | 466 | 1994 |
| Extraterrestrial nucleobases in the Murchison meteorite Z Martins, O Botta, ML Fogel, MA Sephton, DP Glavin, JS Watson, ... Earth and planetary science Letters 270 (1-2), 130-136, 2008 | 431 | 2008 |
| Extraterrestrial amino acids in Orgueil and Ivuna: Tracing the parent body of CI type carbonaceous chondrites P Ehrenfreund, DP Glavin, O Botta, G Cooper, JL Bada Proceedings of the National Academy of Sciences 98 (5), 2138-2141, 2001 | 404 | 2001 |
| What makes a planet habitable? H Lammer, JH Bredehöft, A Coustenis, ML Khodachenko, L Kaltenegger, ... The Astronomy and astrophysics review 17, 181-249, 2009 | 395 | 2009 |
| Observations of solid carbon dioxide in molecular clouds with the Infrared Space Observatory PA Gerakines, DCB Whittet, P Ehrenfreund, ACA Boogert, A Tielens, ... The Astrophysical Journal 522 (1), 357, 1999 | 376 | 1999 |
| Astrophysical and astrochemical insights into the origin of life P Ehrenfreund, W Irvine, L Becker, J Blank, JR Brucato, L Colangeli, ... Reports on progress in physics 65 (10), 1427, 2002 | 355 | 2002 |
| Development and evaluation of a microdevice for amino acid biomarker detection and analysis on Mars AM Skelley, JR Scherer, AD Aubrey, WH Grover, RHC Ivester, ... Proceedings of the National Academy of Sciences 102 (4), 1041-1046, 2005 | 328 | 2005 |
| An ISO SWS view of interstellar ices: first results. DCB Whittet, WA Schutte, A Tielens, ACA Boogert, T De Graauw, ... Astronomy and Astrophysics, v. 315, p. L357-L360 315, L357-L360, 1996 | 280 | 1996 |
| Methanol: The second most abundant ice species towards the high-mass protostars RAFGL7009S and W 33A E Dartois, W Schutte, TR Geballe, K Demyk, P Ehrenfreund, ... Astronomy and Astrophysics, v. 342, p. L32-L35 (1999) 342, L32-L35, 1999 | 269 | 1999 |
| Weak ice absorption features at 7.24 and 7.41 MU M in the spectrum of the obscured young stellar object W 33A WA Schutte, ACA Boogert, A Tielens, DCB Whittet, PA Gerakines, ... Astronomy and Astrophysics, v. 343, p. 966-976 (1999) 343, 966-976, 1999 | 251 | 1999 |
| Infrared spectroscopy of interstellar apolar ice analogs P Ehrenfreund, ACA Boogert, PA Gerakines, A Tielens, EF Van Dishoeck Astronomy and Astrophysics, v. 328, p. 649-669 (1997) 328, 649-669, 1997 | 243 | 1997 |
| The photostability of amino acids in space P Ehrenfreund, MP Bernstein, JP Dworkin, SA Sandford, LJ Allamandola The Astrophysical Journal 550 (1), L95, 2001 | 228 | 2001 |
| Detection of abundant CO2 ice in the quiescent dark cloud medium toward Elias 16 DCB Whittet, PA Gerakines, A Tielens, AJ Adamson, ACA Boogert, ... The Astrophysical Journal 498 (2), L159, 1998 | 215 | 1998 |
| Experimentally tracing the key steps in the origin of life: The aromatic world P Ehrenfreund, S Rasmussen, J Cleaves, L Chen Astrobiology 6 (3), 490-520, 2006 | 199 | 2006 |
| Sulfate minerals and organic compounds on Mars A Aubrey, HJ Cleaves, JH Chalmers, AM Skelley, RA Mathies, ... Geology 34 (5), 357-360, 2006 | 181 | 2006 |
