دورية أكاديمية
Testing the Limits of Biosignature Detection in Ca-sulphate Mixtures Through a Simulated Martian Environment
| العنوان: | Testing the Limits of Biosignature Detection in Ca-sulphate Mixtures Through a Simulated Martian Environment |
|---|---|
| المؤلفون: | Ballard, Connor J, Preston, Louisa J, Shah, Drashti, Hills, Russell, Cabrelli, Susi, Cassar, Jasmine, Enoma, Anita, Greenstein, Mia, Johnson-Adams, Poppie, Okoboi, Samantha, Tran, Trishy, Wang, Jenny, Goodfellow, Philip, Panter, Laura, Clarkson, Alex, Hunter, Perm, Dunn, William R |
| المصدر: | Research Notes of the AAS , 7 (11) , Article 252. (2023) |
| بيانات النشر: | American Astronomical Society |
| سنة النشر: | 2023 |
| المجموعة: | University College London: UCL Discovery |
| الوصف: | Mixtures of cyanobacterial microbial mat and Ca-sulphate minerals were exposed to a simulated Martian environment via the Thales Alenia Space's "MARSBalloon" Project in partnership with St Bernard's High School via the Orbyts science inclusivity program. FTIR spectroscopic analyses identified that at 50% Ca-sulphate, most microbial mat biosignatures were obscured under Earth conditions, except for the C–O stretch and polysaccharide O–H vibrational modes. At 75% Ca-sulphate concentrations, no spectral biosignatures were observed. However, after exposure to a simulated stratospheric Martian environment, partial dehydration of the Ca-sulphate occurred to reveal the spectral biosignatures. This has implications in the search for life on Mars, particularly within evaporite-rich environments similar to those being investigated by the Curiosity rover. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | text |
| اللغة: | English |
| العلاقة: | https://discovery.ucl.ac.uk/id/eprint/10182802/1/Preston_Testing%20the%20Limits_VoR.pdfTest; https://discovery.ucl.ac.uk/id/eprint/10182802Test/ |
| الإتاحة: | https://discovery.ucl.ac.uk/id/eprint/10182802/1/Preston_Testing%20the%20Limits_VoR.pdfTest https://discovery.ucl.ac.uk/id/eprint/10182802Test/ |
| حقوق: | open |
| رقم الانضمام: | edsbas.EFE5D7D0 |
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