Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    EVOLUTION OF A HABITABLE PLANET (2003)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Astronomy and Astrophysics 41 (2003), S. 429-463 
    Details
    ISSN: 0066-4146
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Physics
    Notes: Giant planets have now been discovered around other stars, and it is only a matter of time until Earth-sized planets are detected. Whether any of these planets are suitable for life depends on their volatile abundances, especially water, and on their climates. Only planets within the liquid-water habitable zone (HZ) can support life on their surfaces and, thus, can be analyzed remotely to determine whether they are inhabited. Fortunately, current models predict that HZs are relatively wide around main-sequence stars not too different from our sun. This conclusion is based on studies of how our own planet has evolved over time. Earth's climate has remained conducive to life for the past 3.5 billion years or more, despite a large increase in solar luminosity, probably because of previous higher concentrations of CO2 and/or CH4. Both these gases are involved in negative feedback loops that help to stabilize the climate. In addition to these topics, we also briefly discuss the rise of atmospheric O2 and O3, along with their possible significance as indicators of life on other planets.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.astro.41.071601.170049
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Mars Ancient fingerprints in the clay (2007)
    [s.l.] : Nature Publishing Group
    Nature 448 (2007), S. 31-32 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Volcanic rocks dominate the surface of Mars. In the cold, dry conditions that prevail there today, these rocks can persist with little chemical alteration. But the recent discovery by Mars orbiters and landers of sulphate and clay deposits on the planet indicates that Mars' ancient environment was ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/448031a
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Planetary science On Earth, as it is on Mars? (2004)
    [s.l.] : Nature Publishing Group
    Nature 429 (2004), S. 707-708 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In Soviet times, Russians would joke, “Is there life on Mars? No, not there either”. Indeed, by the late 1970s, NASA's Viking mission had revealed a cold, dry planet, hostile to life. Then, in the 1990s, came the confluence of two strands of science: a heated debate about possible ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/429707a
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Mars Twin studies on Mars (2005)
    [s.l.] : Nature Publishing Group
    Nature 436 (2005), S. 42-43 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Sending probes to Mars is a risky business. Roughly half the spacecraft ever sent have crashed, burnt up or simply missed the planet altogether. In contrast, Spirit and Opportunity, NASA's Mars Exploration Rovers, landed successfully on opposite sides of Mars in January 2004, and continue ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/436042a
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...