Zobrazeno 1 - 10
of 78
pro vyhledávání: '"Pearce, Ben"'
Autor:
Pearce, Ben K. D., Hörst, Sarah M., Cline, Christopher J., Cintala, Mark J., He, Chao, Sebree, Joshua A., MacKenzie, Shannon M., Daly, R. Terik, Pontefract, Alexandra J., Pesciotta, Cara
Publikováno v:
2024 Planet. Sci. J. 5 68
Impacts are critical to producing the aqueous environments necessary to stimulate prebiotic chemistry on Titan's surface. Furthermore, organic hazes resting on the surface are a likely feedstock of biomolecules. In this work, we conduct impact experi
Externí odkaz:
http://arxiv.org/abs/2403.00029
Publikováno v:
(2024) Planet. Sci. J., 5, 23
Over 4 billion years ago, Earth is thought to have been a hazy world akin to Saturn's moon Titan. The organic hazes in the atmosphere at this time could contain a vast inventory of life's building blocks, and thus may have seeded warm little ponds fo
Externí odkaz:
http://arxiv.org/abs/2401.06212
Autor:
OoLEN, Asche, Silke, Bautista, Carla, Boulesteix, David, Champagne-Ruel, Alexandre, Mathis, Cole, Markovitch, Omer, Peng, Zhen, Adams, Alyssa, Dass, Avinash Vicholous, Buch, Arnaud, Camprubi, Eloi, Colizzi, Enrico Sandro, Colón-Santos, Stephanie, Dromiack, Hannah, Erastova, Valentina, Garcia, Amanda, Grimaud, Ghjuvan, Halpern, Aaron, Harrison, Stuart A, Jordan, Seán F., Jia, Tony Z, Kahana, Amit, Kolchinsky, Artemy, Moron-Garcia, Odin, Mizuuchi, Ryo, Nan, Jingbo, Orlova, Yuliia, Pearce, Ben K. D., Paschek, Klaus, Preiner, Martina, Pinna, Silvana, Rodríguez-Román, Eduardo, Schwander, Loraine, Sharma, Siddhant, Smith, Harrison B., Vieira, Andrey, Xavier, Joana C.
Understanding the origin(s) of life (OoL) is a fundamental challenge for science in the 21st century. Research on OoL spans many disciplines, including chemistry, physics, biology, planetary sciences, computer science, mathematics and philosophy. The
Externí odkaz:
http://arxiv.org/abs/2308.11665
Publikováno v:
ACS Earth and Space Chemistry 2022 6 (10), 2385-2399
A critical early stage for the origin of life on Earth may have involved the production of hydrogen cyanide (HCN) in a reducing, predominantly H$_2$ atmosphere. HCN is crucial for the origin of life as it is a possible precursor to several biomolecul
Externí odkaz:
http://arxiv.org/abs/2209.09257
Autor:
Paschek, Klaus, Kohler, Kai, Pearce, Ben K. D., Lange, Kevin, Henning, Thomas K., Trapp, Oliver, Pudritz, Ralph E., Semenov, Dmitry A.
Publikováno v:
Life, 2022, 12(3), 404
The origin of life might be sparked by the polymerization of the first RNA molecules in Darwinian ponds during wet-dry cycles. The key life-building block ribose was found in carbonaceous chondrites. Its exogenous delivery onto the Hadean Earth could
Externí odkaz:
http://arxiv.org/abs/2204.06523
Autor:
Pearce, Ben K. D.
Given the role of HCN as a reactant in RNA building block production (e.g. nucleobases, ribose, and 2-aminooxazole), we propose that an atmosphere rich in hydrogen cyanide (HCN) is a distinguishing feature of what we term biogenic worlds. These are w
Externí odkaz:
http://hdl.handle.net/11375/26775
Towards RNA life on Early Earth: From atmospheric HCN to biomolecule production in warm little ponds
Autor:
Pearce, Ben K. D., Molaverdikhani, Karan, Pudritz, Ralph E., Henning, Thomas, Cerrillo, Kaitlin E.
The origin of life on Earth involves the early appearance of an information-containing molecule such as RNA. The basic building blocks of RNA could have been delivered by carbon-rich meteorites, or produced in situ by processes beginning with the syn
Externí odkaz:
http://arxiv.org/abs/2201.00829
Autor:
Paschek, Klaus, Semenov, Dmitry A., Pearce, Ben K. D., Lange, Kevin, Henning, Thomas K., Pudritz, Ralph E.
Publikováno v:
The Astrophysical Journal, 2023, 942, 50
Prebiotic molecules, fundamental building blocks for the origin of life, have been found in carbonaceous chondrites. The exogenous delivery of these organic molecules onto the Hadean Earth could have sparked the polymerization of the first RNA molecu
Externí odkaz:
http://arxiv.org/abs/2112.09160
Autor:
Stolar, Tomislav, Pearce, Ben K.D., Etter, Martin, Truong, Khai-Nghi, Ostojić, Tea, Krajnc, Andraž, Mali, Gregor, Rossi, Barbara, Molčanov, Krešimir, Lončarić, Ivor, Meštrović, Ernest, Užarević, Krunoslav, Grisanti, Luca
Publikováno v:
In iScience 21 June 2024 27(6)
Publikováno v:
J Phys Chem A, 2020, 124, 41, 8594-8606
Hydrogen cyanide (HCN) and formaldehyde (H2CO) are key precursors to biomolecules such as nucleobases and amino acids in planetary atmospheres; However, many reactions which produce and destroy these species in atmospheres containing CO2 and H2O are
Externí odkaz:
http://arxiv.org/abs/2009.12375