Abstract：
:A continuing challenge for scientists is to keep K-12 teachers informed about new scientific developments. Over the past few years, this challenge has increased as new research findings have come from the field of astrobiology. In addition to trying to keep abreast of these new discoveries, K-12 teachers must also face the demands of the content and pedagogical goals imposed by state and national science education standards. Furthermore, many teachers lack the scientific content knowledge or training in current teaching methods to create their own activities or to implement appropriately new teaching materials designed to meet the standards. There is a clear need for special courses designed to increase the scientific knowledge of K-12 science teachers. In response to this need, the authors developed a suite of innovative, classroom-ready lessons for grades 5-12 that emphasize an active engagement instructional strategy and focus on the recent discoveries in the field of astrobiology. They further created a graduate-level, Internet-based distance-learning course for teachers to help them become familiar with these astrobiology concepts and to gain firsthand experience with the National Science Education Standards-based instructional strategies.
journal_name
Astrobiologyjournal_title
Astrobiologyauthors
Prather EE,Slater TFdoi
10.1089/15311070260192282keywords:
subject
Has Abstractpub_date
2002-07-01 00:00:00pages
215-23issue
2eissn
1531-1074issn
1557-8070journal_volume
2pub_type
杂志文章相关文献
ASTROBIOLOGY文献大全abstract：:The NASA Astrobiology Roadmap provides guidance for research and technology development across the NASA enterprises that encompass the space, Earth, and biological sciences. The ongoing development of astrobiology roadmaps embodies the contributions of diverse scientists and technologists from government, universities...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/153110703769016299
更新日期：2003-07-01 00:00:00
abstract：:Like all low- and moderate-mass stars, the Sun will burn as a red giant during its later evolution, generating of solar luminosities for some tens of millions of years. During this post-main sequence phase, the habitable (i.e., liquid water) thermal zone of our Solar System will lie in the region where Triton, Pluto-C...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/153110703769016406
更新日期：2003-07-01 00:00:00
abstract：:Knowledge and understanding of the martian environment has advanced greatly over the past two decades, beginning with NASA's return to the surface of Mars with the Pathfinder mission and its rover Sojourner in 1997 and continuing today with data being returned by the Curiosity rover. Reduced carbon, however, is yet to...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2014.1220
更新日期：2015-06-01 00:00:00
abstract：:The Atacama Desert has long been considered a good Mars analogue for testing instrumentation for planetary exploration, but very few data (if any) have been reported about the geomicrobiology of its salt-rich subsurface. We performed a Mars analogue drilling campaign next to the Salar Grande (Atacama, Chile) in July 2...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2011.0654
更新日期：2011-12-01 00:00:00
abstract：:To estimate the occurrence of terrestrial exoplanets and maximize the chance of finding them, it is crucial to understand the formation of planetary systems in general and that of terrestrial planets in particular. We show that a reliable formation theory should not only explain the formation of the Solar System, with...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2009.0372
更新日期：2010-01-01 00:00:00
abstract：:We propose a terahertz (far-infrared) circular dichroism-based life-detection technology that may provide a universal and unequivocal spectroscopic signature of living systems regardless of their genesis. We argue that, irrespective of the specifics of their chemistry, all life forms will employ well-structured, chira...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/153110703322610609
更新日期：2003-10-01 00:00:00
abstract：:We observed 20-200 m sized low-albedo seepage-like streaks and their annual change on defrosting polar dunes in the southern hemisphere of Mars, based on the Mars Orbiter Camera (MOC), High Resolution Stereo Camera (HRSC), and High Resolution Imaging Science Experiment (HiRISE) images. The structures originate from da...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2007.0212
更新日期：2009-01-01 00:00:00
abstract：:Chloride-bearing deposits and phyllosilicates-bearing units are widely distributed in the southern highlands of Mars, but these phases are rarely found together in fluviolacustrine environments. The study of the coexistence of these minerals can provide important insights into geochemistry, water activity, and ultimat...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2017.1757
更新日期：2018-08-01 00:00:00
abstract：:Early Earth may have hosted a biologically mediated global organic haze during the Archean eon (3.8-2.5 billion years ago). This haze would have significantly impacted multiple aspects of our planet, including its potential for habitability and its spectral appearance. Here, we model worlds with Archean-like levels of...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2017.1666
更新日期：2018-03-01 00:00:00
abstract：:The EPOXI Discovery Mission of Opportunity reused the Deep Impact flyby spacecraft to obtain spatially and temporally resolved visible photometric and moderate resolution near-infrared (NIR) spectroscopic observations of Earth. These remote observations provide a rigorous validation of whole-disk Earth model simulatio...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2011.0642
更新日期：2011-06-01 00:00:00
abstract：:Raman spectroscopy can provide chemical information about organic and inorganic substances quickly and nondestructively with little to no sample preparation, thus making it an ideal instrument for Mars rover missions. The ESA ExoMars planetary mission scheduled for launch in 2018 will contain a miniaturized Raman spec...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2015.1334
更新日期：2015-09-01 00:00:00
abstract：:The possible meteorite parent body origin of Earth's pregenetic nucleobases is substantiated by the guanine (G), adenine (A), and uracil (U) measured in various meteorites. Cytosine (C) and thymine (T), however, are absent in meteorites, making the emergence of an RNA and later RNA/DNA/protein world problematic. We in...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2015.1451
更新日期：2016-11-01 00:00:00
abstract：:The γ-radiolysis of fullerenes (C60 and C70) was performed to investigate the role of fullerenes as a carbon source in building organic molecules in astrophysical ice analog media. Mass spectrometric analyses and the sequential collision-induced dissociation processes enabled us to determine the plausible chemical str...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2018.1905
更新日期：2019-07-01 00:00:00
abstract：:Properties of avenues of transformation and their mutualism with forms of organization in dynamic systems are essential for understanding the evolution of prebiotic order. We have analyzed competition between two avenues of transformation in an A↔B system, using the simulation approach called BiADA (Biotic Abstract Du...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2012.0933
更新日期：2013-05-01 00:00:00
abstract：:Microbialites can have complex morphologies that preserve clues to ancient microbial ecology. However, extracting and interpreting these clues is challenging due to both the complexity of microbial structures and the difficulties of connecting morphology to microbial processes. Fenestrate microbialites from the 2521±3...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2010.0560
更新日期：2011-07-01 00:00:00
abstract：:We show that terrestrial planets in the habitable zones of M dwarfs older than ∼1 Gyr could have been in runaway greenhouses for several hundred million years following their formation due to the star's extended pre-main sequence phase, provided they form with abundant surface water. Such prolonged runaway greenhouses...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2014.1231
更新日期：2015-02-01 00:00:00
abstract：:Short-term and long-term science plans were developed as part of the strategic planning process used by the Biologic Analog Science Associated with Lava Terrains (BASALT) science team to conduct two Mars-simulation missions investigating basalt habitability at terrestrial volcanic analog sites in 2016. A multidiscipli...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2018.1850
更新日期：2019-03-01 00:00:00
abstract：:As photosynthesis on Earth produces the primary signatures of life that can be detected astronomically at the global scale, a strong focus of the search for extrasolar life will be photosynthesis, particularly photosynthesis that has evolved with a different parent star. We take previously simulated planetary atmosphe...
journal_title：Astrobiology
pub_type： 杂志文章,评审
doi：10.1089/ast.2006.0108
更新日期：2007-02-01 00:00:00
abstract：:We review the in situ geochronology experiments conducted by the Mars Science Laboratory mission's Curiosity rover to understand when the Gale Crater rocks formed, underwent alteration, and became exposed to cosmogenic radiation. These experiments determined that the detrital minerals in the sedimentary rocks of Gale ...
journal_title：Astrobiology
pub_type： 杂志文章,评审
doi：10.1089/ast.2018.1871
更新日期：2019-11-01 00:00:00
abstract：:Major discrepancies have been noted for some time between fossil ages and molecular divergence dates for a variety of taxa. Recently, systematic trends within avian clades have been uncovered. The trends show that the disparity is much larger for mitochondrial DNA than for nuclear DNA, also that it is larger for crown...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2016.1527
更新日期：2017-01-01 00:00:00
abstract：:Modern ecological niches are teeming with an astonishing diversity of microbial life in biofilms closely associated with mineral surfaces, which highlights the remarkable success of microorganisms in conquering the challenges and capitalizing on the benefits presented by the mineral-water interface. Biofilm formation ...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2011.0776
更新日期：2012-08-01 00:00:00
abstract：:Raman spectroscopy is being adopted as a nondestructive instrumentation for the robotic exploration of Mars to search for traces of life in the geological record. Here, miniaturized Raman spectrometers of two different types equipped with 532 and 785 nm lasers for excitation, respectively, were compared for the detect...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2012.0879
更新日期：2012-12-01 00:00:00
abstract：:We present a summary of the physical principles and design of the Dynamic Albedo of Neutrons (DAN) instrument onboard NASA's 2009 Mars Science Laboratory (MSL) mission. The DAN instrument will use the method of neutron-neutron activation analysis in a space application to study the abundance and depth distribution of ...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2007.0157
更新日期：2008-06-01 00:00:00
abstract：:A long-term goal of exoplanet studies is the identification and detection of biosignature gases. Beyond the most discussed biosignature gas O2, only a handful of gases have been considered in detail. In this study, we evaluate phosphine (PH3). On Earth, PH3 is associated with anaerobic ecosystems, and as such, it is a...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2018.1954
更新日期：2020-02-01 00:00:00
abstract：:Antibody microarrays are becoming frequently used tools for analytical purposes. A key factor for optimal performance is the stability of the immobilized (capturing) antibodies as well as those that have been fluorescently labeled to achieve the immunological test (tracers). This is especially critical for long-distan...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2011.0647
更新日期：2011-10-01 00:00:00
abstract：:Recent measurements of methane (CH4) by the Mars Science Laboratory (MSL) now confront us with robust data that demand interpretation. Thus far, the MSL data have revealed a baseline level of CH4 (∼0.4 parts per billion by volume [ppbv]), with seasonal variations, as well as greatly enhanced spikes of CH4 with peak ab...
journal_title：Astrobiology
pub_type： 杂志文章,评审
doi：10.1089/ast.2018.1917
更新日期：2018-10-01 00:00:00
abstract：:Epsomite (MgSO(4).7H(2)O) and hexahydrite (MgSO(4).6H(2)O) are common minerals found in marine evaporite deposits, in saline lakes as precipitates, in weathering zones of coal and metallic deposits, in some soils and their efflorescences, and possibly on the surface of Europa as evaporite deposits. Thermodynamic prope...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/153110703322610708
更新日期：2003-10-01 00:00:00
abstract：:Water, vital for life, not only maintains the integrity of structural and metabolic biomolecules, it also transports them in solution or colloidal suspension. Any flow of water through a dormant or fossilized microbial community elutes molecules that are potentially recognizable as biomarkers. We hypothesize that the ...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/153110701753198936
更新日期：2001-07-01 00:00:00
abstract：:In June 2003, the geochemical composition of geothermal fluids was determined at 9 sites in the Vulcano hydrothermal system, including sediment seeps, geothermal wells, and submarine vents. Compositional data were combined with standard state reaction properties to determine the overall Gibbs free energy (DeltaG(r) ) ...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2007.0128
更新日期：2007-12-01 00:00:00
abstract：:Aqueous solutions on Mars are theorized to contain very different ion compositions than those on Earth. To determine the effect of such solutions on typical environmental micro-organisms, which could be released from robotic spacecraft or human exploration activity, we investigated the resistance of Sphingomonas desic...
journal_title：Astrobiology
pub_type： 杂志文章
doi：10.1089/ast.2018.1840
更新日期：2019-01-01 00:00:00
