An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Wu M, Higgs PG.Wu M, et al. Among authors: higgs pg.Astrobiology. 2011 Nov;11(9):895-906. doi: 10.1089/ast.2011.0679. Epub 2011 Nov 7.Astrobiology. 2011.PMID: 22059642
Wu M, Walker SI, Higgs PG.Wu M, et al. Among authors: higgs pg.Astrobiology. 2012 Sep;12(9):818-29. doi: 10.1089/ast.2012.0819. Epub 2012 Aug 29.Astrobiology. 2012.PMID: 22931294
Shah V, de Bouter J, Pauli Q, Tupper AS, Higgs PG.Shah V, et al. Among authors: higgs pg.Life (Basel). 2019 Aug 7;9(3):65. doi: 10.3390/life9030065.Life (Basel). 2019.PMID: 31394866Free PMC article.