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Potraga za životom u Svemiru
Slobodan Danko Bosanac   
Utorak, 10 Veljača 2009
arecibo_naic_big.gifPotraga za životom u Svemiru stara je 150 godina.








                                             više
 
Time to turn off the lights
Slobodan Danko Bosanac   
Četvrtak, 05 Veljača 2009
lightpollution.jpgCities needlessly shine billions of dollars directly into the sky each year and, as a result; a fifth of the world's population cannot see the Milky Way. Malcolm Smith explains why a dark sky has much to offer everyone. Over the past six decades, professional and amateur astronomers have been pioneering efforts to curb light pollution to protect the viability of their observatories. During the 2009 International Year of Astronomy, particularly through the Dark Skies Awareness project1, astronomers can find allies in a common cause to convince authorities and the public that a dark sky is a valuable resource for everyone.

Malcolm Smith
Cerro Tololo Inter-American Observatory, Casilla 603, La Serena, Chile.
Email:  Ova email adresa je zaštićena od spam robota, nije vidljiva ako ste isključili Javascript
Nature 457, 27 (1 January 2009) (za cjeloviti tekst potrebna je pretplata)
 
Preparing high-school physics teachers
Jaša Čalogović   
Srijeda, 04 Veljača 2009

thumb_phy-teachers.jpgBy taking on a significant part of the education of high-school physics teachers, physics departments in the US can inspire their students and help ensure a scientifically educated population.

Read more...

 
Distant planet is an orbiting hell
Slobodan Danko Bosanac   
Petak, 30 Siječanj 2009
distant_planet.jpgAstronomers have observed a planet some 200 light years from Earth that, for a few hours, becomes 700 degrees Celsius (1,300 degrees Fahrenheit) hotter every time its elliptical orbit brings it close to its sun.
pdf Full article
 
Nekoliko zanimljivih članaka
Slobodan Danko Bosanac   
Subota, 24 Siječanj 2009
thumb_nature-pic.jpgZa sve one koji vole pročitati nešto iz područja astronomije, ovdje mogu pronaći nekoliko zanimljivih članaka iz Nature i Physics Nature.

pdf Which moon to shoot for?
Planetary scientists have a rare chance to pick the destination for their next big mission. But will it be Titan or Europa? (Special report – Nature, 22.1.2009)

pdf Is there life on Europa?
BOOK REVIEWED - Unmasking Europa: The Search for Life on Jupiter's Ocean Moon

pdf Shocking start for the solar system
In the 1970s, the hypothesis arose that our solar system was formed by a passing shock wave from a supernova, which triggered the collapse of an interstellar cloud into a dense region of gas and dust that further contracted to become the Sun and its orbiting planets…

pdf Signs of dark matter?
Two groups of cosmic-ray observers have reported unexpectedly large fluxes of high-energy electrons and positrons. Those excesses suggest either that there are undiscovered astrophysical sources such as radio-quiet pulsars surprisingly nearby or that the positrons and electrons are annihilation products of WIMPs—weakly interacting dark-matter particles hundreds of times more massive than the proton.
 
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E-skola astronomija

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CAP Journal

Medunarodna astronomska godina 2009