In 2018, the authors were invited to share their perspectives as Indigenous studies scholars work of Breakthrough Listen, an organization affiliated with both Berkeley SETI Research Center (BSRC) and Search for Extraterrestrial Intelligence (SETI). This collectively authored statement highlights some ethical concerns these perceived regarding history colonialism expectations find “advanced” or ...

Department of Science and Technology, College of Arts and Sciences, Bryant University, Smithfield, RI 02917, USA b State Key Laboratory of Loess and Quaternary Geology, IEE, CAS, Xi’an 710075, PR China c School of Human Settlement and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, PR China d LPS, Nanjing Institute of Geology and Palaeontology, CAS, Nanjing 210008, PR China Departme...

1 Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, P.O. Box 9825, 100029 Beijing, China 2 Shandong Institute and Laboratory of Geological Sciences, 250013 Jinan, China 3 Nansen-Zhu International Research Center, Institute of Atmospheric Physics, Chinese Academy of Sciences, 100029 Beijing, China 4 State Key Laboratory of Loess...

Microorganisms can be used as model systems for studying biological responses to extraterrestrial conditions; however, the methods for studying their response are extremely challenging. Since the first high altitude microbiological experiment in 1935 a large number of facilities have been developed for short- and long-term microbial exposure experiments. Examples are the BIOPAN facility, used f...

(1) Laboratory for Hydrogeology, Department of Geology-Geography, Faculty of Exact Science, Catholic University of Leuven, Redingenstraat 16, 3000 Leuven, Belgium (2) Department of Hydrogeology and Engineering Geology, University of Miskolc, Miskolc, Hungary (3) Hydrogeology and Environmental Geology, Department of Georesources, Geotechnologies and Building Materials (GEOMAC), University of Liè...

Brittle and Ductile Deformational Structures in Tectonic Zones: The Research Trends in India N MANDAL1*, A CHATTOPADHAYAY2, H B SRIVASTAVA3, T K BISWAL4 and S BOSE5 1Department of Geological Sciences, Jadavpur University, Kolkata 700 032, India 2Department of Geology, University of Delhi, Delhi 110 007, India 3Department of Geology, Banaras Hindu University, Varanasi 221 005, India 4Department ...

Recently it has been suggested that one or more large extraterrestrial (ET) objects struck northern North America 12,900 +/- 100 calendar years before present (calBP) [Firestone RB, et al. (2007) Proc Natl Acad Sci USA 104: 16016-16021]. This impact is claimed to have triggered the Younger Dryas major cooling event and resulted in the extinction of the North American megafauna. The impact is al...

In this study, we attempt to illustrate the competition that constitutes the main challenge of astrobiology, namely the competition between the probability of extraterrestrial life and its detectability. To illustrate this fact, we propose a simple statistical approach based on our knowledge of the Universe and the Milky Way, the Solar System, and the evolution of life on Earth permitting us to...