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25 Apr 2014

Jord-størrelse planet discovery: 5 ting at vide

 

NASA'S Kepler rumteleskopet opdaget en anden jord-størrelse planet, der er i den "beboelige zone," en planet afstand fra sin stjerne hvor forholdene er ideel til flydende vand.

Denne planet--kaldet Kepler-186f--er tættest på jorden i størrelse af alle de tidligere opdagelser af planeter i dette Guldlok zone, sagde Elisa Quintana af NASAs Ames Research Center og SETI Institute, ledende forfatter af undersøgelsen rapporteret i tidsskriftet Science.

Opdagelsen af Kepler-186f er "et stort skridt hen imod at finde denne hellige gral planet", der både tæt i størrelse til jorden og kredser omkring en stjerne svarer til jordens sol, Quintana sagde. I stedet for at...



24 Mar 2014



A week or so ago, I watched an old sci-fi movie, circa 1958, with my wife. It featured horrible special effects and an unrealistic story line about manned missions to Mars. Of course, it was made 55 years ago, so it should come as no surprise that the science was outdated, but we also noted that on the flight back to earth, from Mars, all the meals were served by the female scientists. The women were clearly treated as equals, scientifically, but still expected to clean up after dinner and serve the men coffee.

I also recently read a Smithsonian article about Carl Sagan, in anticipation of the new Cosmos series.

It dawned on me, that Sagan spent a considerable amount of his time in an attempt to bring the study of space, as well as an...