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Are we alone?

Fermi Paradox

There is an estimated 200-400 billion stars (2-4 x 10¹¹) in our Milky way galaxy only and as Hubble reveals there is all in all 100 billions galaxies in the visible universe and this number is likely to increase to 200 billion as the telescope technology in space improves NASA Is Sending a Life-Looking Drone to Saturn’s Enormous Moon Titan.

In November 2013, astronomers reported based on kepler mission data that there could be as many as 40 billion earth like habitable exoplanets revolving around stars and red dwarfs in milky way galaxy alone. Out of which 11 billion may be orbiting around the sun like star. Keeping these facts in mind the possibility of potential habitable Exoplanets is pretty good.

Humans have long been fascinated by the possibility of existence of extraterrestrial life forms and advancement in astrophysics has enabled us to explore the deep space for any event that can bring us closer in exploration of any such advanced civilization.

Physicist Philip Morrison and Giuseppe Cocconi speculated that there is pretty good chance that if any alien civilization tried to contact us via radio signal they might do so using a frequency of 1420 megahertz (21 centimeters). It is justified by the fact that hydrogen which is the most abundant element in the universe emits a radio signal of the same frequency which makes it so common that any advanced civilization is likely to be familiar with the same.

One of many key determinants of which worlds can host life could lie within the movement of their oceans.

Proper now, calculating that movement is a problem. In spite of everything, scientists cannot simply dip their toes in the water. However new analysis pulls collectively details about 4 of essentially the most intriguing ocean worlds to tell fashions of what their subsurface oceans may be doing.

“These oceans are actually  fascinating in and of themselves,” Krista Soderlund, a skilled on planetary fluid dynamics on the College of Texas at Austin and creator of the brand new analysis, instructed House.com. “You typically are first drawn to a satellite tv for pc by what it appears like on its floor, however I feel that what’s going on beneath the floor is simply as thrilling and fascinating.”