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What's New? Curiosity Resumes Science Investigations - 03/25/2013 NASA's Mars rover Curiosity has resumed science investigations after recovery from a computer glitch that prompted the engineers to switch the rover to a redundant main computer on Feb. 28. >> Sun in the Way Will Affect Mars Missions in April - 03/20/2013
Mars Exploration Program
Aurinkokalvoa Optiikan eteen laitettavalla suodatinkalvolla valo voidaan vaimentaa turvalliselle tasolle. Suodatinkalvoa on erikseen katseluun ja valokuvaukseen. Katselukalvolla voi myös kuvata kaukoputken kuvatasossa. Valokuvauskalvo on suositeltavaa ainoastaan kuvattaessa voimakasta okulaarisuurennosta käytettäessä, koska katselukalvolla valotusajat voivat tällöin muodostua liian pitkiksi. Kuvauskalvoa ei saa käyttää katseluun ilman lisäsuodatinta!
Astro | Aurinkosuodatin
View Sky Calendar for: Current Month View Sky Calendar for Year: | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | Eclipses of the Sun Solar Eclipse - main directory for NASA's Solar Eclipse Page (some popular links below) Annular Solar Eclipse of 2012 May 20 Total Solar Eclipse of 2012 Nov 13
Eclipse Web Site
Well now, this is an interesting discovery: astronomers have found what looks like a "super-Earth" – a planet more massive than Earth but still smaller than a gas giant – orbiting a nearby star at the right distance to have liquid water on it! Given that, it might – might – be Earthlike. This is pretty cool news. We’ve found planets like this before , but not very many! And it gets niftier: the planet has at least five siblings, all of which orbit its star closer than it does.
Bad Astronomy
The Daily Galaxy --Great Discoveries Channel: Sci, Space, Tech
Among the unsolved mysteries confronting 21st century physics from gravitational waves to dark energy, neutrinos -the "ghosts of the cosmos"- are near the top of the list. These awesomely low-mass subatomic particles , less than a millionth of the mass of electrons, play a key role in weak interactions and come three flavors: electron, muon, and tau. Stars actively flood the universe with new neutrinos along with ancient particles created some two seconds after the Big Bang. CERN announced this week that a muon-type neutrino dispatched from the CERN research laboratory near Geneva had arrived as a tau neutrino at the INFN Gran Sasso Laboratory in Italy, 730 kilometres (450 miles) away.
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