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Showing posts with the label European Space Agency

Good Morning Philae!

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After seven months of hibernation in a dark corner of a lonely comet 67P, Philae has finally woken up! At 2228 CEST, The European Space Agency, received about 85 seconds of communication from the lander that made the comet 67P/ Churyumov/ Gerasimenko its home in November last year.

In the 85 seconds of contact that Philae made via its mothership, Rosetta (read 5 reasons why Rosetta is a Superstar), scientists at the Lander Control Center at the German Aerospace Center received some data packets that show that Philae had probably woken up earlier but failed to contact Earth.

Nevertheless, Philae's battery is now recharged 24 Watts of its 140 Watt Hour capacity and will get better as the comet is approaching the Sun. Philae's revival also means that scientists can now get access to all the data that Philae had recorded before it went into hibernation but could deliver to Earth.

There are exciting days ahead for Philae as life lives his life on a comet and for the ESA who will h…

Earth images in 4K [Coffee-byte]

4K displays made quite a furore at tech shows this year and there are many models of 4K TVs that are available in the market to buy. For the uninitiated, 4K resolution, also called Ultra High Definition (UHD), is the next big thing after HD. But what is the use of these TVs or displays when you do not have the content to see.
Well, the European Space Agency has recently released a video of the Earth Images, taken from the International Space Station (ISS) by astronaut, Alexander Gerst. Images that are part of this video were shot through a high resolution (4256 X 2832 pixels) camera on top of the ISS every one second and then sent back to the Earth.
A team at ESA then made this video by playing the still pictures at 25 frames per second and also taking the liberty to add some artistic touches to it.
The resolution for the video here can be raised all the way to 4K but the video is enjoyable even at lesser resolutions! Do post your reactions in the comments section below and subscribe…

Is the Earth's gravity same everywhere?

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Earth's gravity measured by NASA's GRACE mission, showing deviations from the theoretical gravity of an idealized smooth Earth. (Photo credit: Wikipedia)When you drop something, it falls downwards towards the ground. Why does it fall down? Why not up? All such questions were answered with a 7 lettered word-GRAVITY. Gravity is an attractive force and is stronger on Earth as compared to our Moon due to larger mass. When you drop an object it falls towards the ground and when it is dropped from a greater height it falls towards the ground with greater speed and impact. The greater impact and speed is attributed to acceleration (the rate of change of speed) which is higher due to gravity.
The force of gravity is inversely proportional to the radius of the Earth, that's what our textbooks said in school. But a recent press release from the European Space Agency, showed that the shape of the Earth is not a perfect sphere but a geoid or ellipsoid, bulging slightly at the equator a…