Time to revisit “Reflections on a mote of dust ” !

 

It never gets old to revisit the work of Carl Sagan ! It was an awesome animation (Above) to start ! His words are still impact-full to ears. They compel us to fine tune our attitude and send out a very simple message to alter our ego maniacal ways of approaching the conflicts around the world. Idea of ‘Living peacefully’ has become a necessary evil for us ! The idea was seen by Carl Sagan as an amicable friend to march forward with ! Sigh ….. Oh humanity !

 

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I thank my friend for the book he sent me yesterday ! It’s an awesome read for sure !
Nos vemos amigos !!!

 

 

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Another Sad Day ! ….. for end of the world enthusiasts !!

So one less in the list of Earth threatening asteroids …… We still yet to call Bruce willis and his oil drilling crew to save us !

I am still worried about the number of people working on the problem of ‘Potential Asteroid Impact’. I wonder what ISRO has to say about this in their annual report which might be due shortly !!

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Source : Here !

You know what you want see …..

Absolutely stunning time lapse  —  Australian Square Kilometre Array Pathfinder

Photographer:  Alex Cherney

Water glints and Alien worlds

 

Few days ago, I attended an online seminar on the hunt of Exoplanets and what it means for us to be involved as students. Folks were talking about the ways in which we can detect the presence of water on Exoplanets.There is a post by Dr.Plait on this very subject – Water glints ! ( I just missed his talk in Atlanta due to a cray mishap; damn you Thursdays and transits ! but anyway … )  Image below is taken by an Astronuat André Kuipers, ISS.

Credit : ESA/NASA, André Kuipers ISS

Now this image below is the glint sunlight reflected off a lake on Saturn’s moon Titan as taken by the Cassini spacecraft. These glints are detected by the Visual and Infrared mapping Spectrometer (VIMS). After visiting the solidification Lab where my friend works on various spectrometers, I was excited. But, after hearing the talk, I was amazed to see the wide spread use of the spectroscopy that is percolating the various branches of Science. We know more about the core of star forming regions and guts of stars located million light years away from us than the core of the Earth only few miles away beneath our feet !

Credit : Cassini/2009 NASA 

 

Quote of the Day – Carl Sagan

                                                       Hubble ultra deep field

 

Our future depends powerfully on how well we understand this Cosmos in which we float like a mote of dust in the morning sky —- Carl Sagan

 

                               Carl Sagan (1934-1996)

Galaxies in collision

 

Above picture taken by the Hubble telescope shows the wreckage, famously known as   The Antennae. (Collision of NGC 4038 and NGC 4039 – both are spiral galaxies)

Image Credit : Hubble Legacy Archive

 

 

Awesome ! Sun spots !!

Don’t we have the most beautiful star in our neighbourhood ? Screw all other stars !!

Image Credit : Alan Friedman

 

 

How to listen to a meteor !!!

Meteors burn up in our atmosphere at a height of 100 km or so, too high to directly carry sound waves.The American Air Force has a radar surveillance facility in Texas that beams radio waves into the sky. When a bit of cosmic objects streaks through our sky, the ionized trail it leaves reflects the radio waves, producing an echo. This radio wave frequency  is then translated into sound frequency, so you can effectively hear a meteor !!!!