Mössbauer effect

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Recoilless emission and recoilless absorption of gamma photons is called Mossbauer effect. It provides us a technique for producing and studying gamma rays whose energies are extremely well defined. Mossbauer effect was discovered by Rudolf Mossbauer in 1958. This effect is applied in the experimental field by the name Mossbauer spectroscopy. Let us first understand why a  nuclear transitions  occurs. After a radioactive nucleus undergoes decay (alpha decay, beta decay, k-capture) it many times reaches to the daughter nuclei state but contains too much energy to be in a final stable state. Unlike our electrons orbiting the nucleus, the nucleus itself doesn’t really have such orbits which are easy to visualize. So, let us just imagine it having a particular quantized energy. Now, to be in a stable ground state it must lose this extra energy. It does this by emitting gamma radiation of that energy. This is the process of nuclear transition, where the nucleus transitions from one
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Kepler has a good news for us!

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Surely,it is exciting to find new things and finding new planets is even more exciting. This has just got better! Kepler has discover eight new planets which are not just ordinary planets but they are earth like!
The eight new planets include kepler442b and kepler482b. you can get more information on this at bad_astronomy
blog. Dr. Phil Plait has an amazing article about it.
Humankind has taken a big leap in the history of astronomy and if these worlds are REALLY earth like than, well, necessity is the mother of all invention.

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