geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Progress and prospection in searching for extraterrestrial life


, : Progress and prospection in searching for extraterrestrial life. Geological Science and Technology Information 28.6

Astrobiology is the study of origin, evolution, distribution and future of life in the universe, with searching for extraterrestrial life as one of its most important content. Searching for extraterrestrial life, the most spectacular area in the international space exploration, may support another breakthrough point for solving origin, evolution and future of life on the Earth, including human beings. Accordingly, this paper integrates and discusses the methods of astronomy, space exploration and numerical simulations used in searching extraterrestrial life on terrestrial planets in and beyond the solar system and important discoveries: the discovery by the spacecrafts to Mars launched by NASA and ESA that the Mars soil shows a little alkaline and habitat for life, that the Europa (Jupiter's moon) could serve as a abode for life if it has a hot interior; and that the atmosphere of Titan (Saturn's moon) was similar to the primitive Earth's which leads to the hypothesis of bridging the step from chemical to biological evolution. The deep impact mission of Comet suggested it might ever feed organic materials and even organisms to the Earth. The radio astronomy shows thousands of terrestrial planets are distributed in our Galaxy. Probably, the suitable condition for life's occurrence and evolution exists beyond the Earth according the current exploration results and important discoveries. This lightens the prospect of searching extraterrestrial life. However, the limited understanding of life forms and exploration technology will make it very hard to find them out.

US$29.90


Other references

Ziemer, R.F.; Broder, J.M.; Spurlock, S.R., 1980: A regional comparison of publication output of academic agricultural economists. Differences in academic research publication output in the North Central region relative to other regions of the USA are explored. Results indicate that the average number of research publications per faculty member is significantly greater in the...

Quayle, J.C., 1976: Economics of optimum selection and application of wood poles by electric utilities. An economic analysis of the pattern of pole retirements that occurred during 1974 in the distribution system of a utility company. Reasons are suggested for abnormally high early losses, and counter-measures suggested.

Chiba, Y.; Nishihara, K.; Haga, N., 2011: Evaluating visual bias and effect of proprioceptive feedback in unilateral neglect. We propose modified versions of the line-bisection task for assessing visual bias and effect of proprioceptive feedback in unilateral neglect; that is, the verbal line-bisection (VLB) task and the VLB plus pointing task. The VLB task requires only...

Zeng, L.; Lam, J.C.W.; Wang, Y.; Jiang, G.; Lam, P.K.S., 2016: Temporal Trends and Pattern Changes of Short- and Medium-Chain Chlorinated Paraffins in Marine Mammals from the South China Sea over the Past Decade. Temporal trends of short- (SCCPs) and medium-chain chlorinated paraffins (MCCPs) were examined in blubber samples of 50 finless porpoises (Neophocaena phocaenoides) and 25 Indo-Pacific humpback dolphins (Sousa chinensis) collected from the South C...

Nielsen, M.; Svejgaard, A.; Skov, S., 1996: IL-2 induces b2-integrin adhesion via a wortmannin/LY294002-sensitive, rapamycin-resistant pathway: phosphorylation of a 125-kilodalton protein correlates with induction of adhesion, but not mitogenesis. Journal of Immunology 157: 50-8

Yurovitzky, Y.G.; Milman, L.S., 1977: Changes in 'characteristics of some enzymes of carbohydrate metabolism iu the process of skeletal muscle differentiation in Misgurnus fossilis. Ontogenez, 81: 21-26

Earl, Derek, 1958: Yellow cedar Spack. Yellow cedar grows within a 100-mile belt along the coast of Alaska and British Columbia south to Oregon at elevations of 2000-5000 ft. It is one of the most valuable trees in British Columbia. It grows to immense size and its timber is valuable....

Gaardbo, J.C.; Nielsen, S.D.; Vedel, S.J.; Ersbøll, A.K.; Harritshøj, L.; Ryder, L.P.; Nielsen, J.O.; Kolte, L., 2008: Regulatory T cells in human immunodeficiency virus-infected patients are elevated and independent of immunological and virological status, as well as initiation of highly active anti-retroviral therapy. Infection with human immunodeficiency virus (HIV) causes a dysregulation of the immune system. This is caused by HIV-specific as well as non-specific mechanisms and has not been explained fully. In particular, knowledge is lacking about the potent...

Liang, B.A.; Storti, K., 2000: Creating problems as part of the "solution": the JCAHO Sentinel Event Policy, legal issues, and patient safety. The recently reported number of patient deaths attributable to medical errors is staggering. In response to this crisis, the Joint Commission on Accreditation of Healthcare Organizations ("JCAHO") proposed its Sentinel Event Policy. The...

Eisenschenk, S.; Gilmore, R., 1999: Strategies for successful management of older patients with seizures. The incidence of seizures increases dramatically with age, making epilepsy in the older patient a common clinical presentation in the primary care practice. In the case of a single seizure or when the underlying cause can be corrected, antiepilept...