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ISRO Successfully launched 104 satellites

isro - Tech Kalakaar

On 15th February 2017, Indian Space Research Organization has successfully launched 104 satellites. ISRO has set a new record in satellite launches in space. It took place in Satish Dhawan Space Center in Sriharikota, Andhra Pradesh. ISRO’s first space mission of the year 2017 was the most difficult mission they have ever carried out till date.

Polar Satellite Launch Vehicle (PSLV)

ISRO stated that Polar Satellite Launch Vehicle (PSLV)’s 39th flight was launched on Tuesday after the Mission Readiness Review committee and Launch Authorisation Board gave its approval for lift off.

This mission included 101 international nano satellites with PSLV-C37/Cartosat2 Series satellite (Cartosat-2). Two of its own nano satellites named as INS-1A and INS-1B were also launched.

Initially 714kg Cartosat -2 series satellite was launched for earth observation, which was followed by the INS-1A and INS-1B. It then went on to inject 103 co-passenger satellites, together weighing about 664 kg, in pairs.

ISRO scientists used the XL Variant – the most powerful rocket – earlier used in the ambitious Chandrayaan.

Our Prime Minister Narendra Modi felicitated the Indian space agency on Twitter.

NASA announces 7 New Earth Like Exoplanets Discovered


NASA astronomers have discovered 7 new Earth Like planets orbiting a star called TRAPPIST-1. The most important and noticeable thing about this Earth Like planets is there are three planets which are habitable. The possibility is that there could be water available on any of three planets which are rocky surface planets.

Thomas Zurbuchen

Thomas Zurbuchen is an associate administrator of the Science Mission Directorate at NASA Headquarters. Thomas Zurbuchen stated in a news conference “The discovery gives us a hint that finding a second Earth is not just a matter of if, but when”. The biggest question of all time: Is there a life on other planets, Zurbuchen also stated it as “major step forward”.

Orbit - Space - Tech Kalakaar

Michael Gillon

Michael Gillon, astronomer at the University of Liege in Belgium also gave his input during the press conference. “The discovery is very promising for the search for life beyond our solar system”. Gollin also added that “If you were on the surface of one of these planets, you would have a wonderful view [of] the other planets”. They are could be somewhat similar to small lighting dots in sky which are visible from our Earth, like Venus.

NASA also added that this is a record breaking discovery for the Space Agency. Also so many earth orbiting around is first time discovered in the history of space agency. Thousands of planets already been discovered by the scientist.

The planets which are in habitable zone also knowns as Goldilocks Zone, are called as TRAPPIST-1 e, f and g. The planet which is very much exact as Earth is Exoplanet e. It also gets exact amount star light which our planet gets.

The size of this planets were discovered using NASA’s Spitzer data and developed first estimates of the masses of six of them. This planets are called as Exoplanets because they are located outside our Solar System.

Planets orbiting around TRAPPIST-1 are likely to be rocky planets based on their densities. It is not sure if water exist on this planets but also there is a possibility that there could be water. Scientist needs more observation to discover the size of the 7th planets and it is expected to be an icy “snowbal-likel” world.


TRAPPIST-1 star is ultra cool dwarf as compared to our sun and is so cool that liquid water could resist on planets orbiting very close to it. This seven planets are very much closer to TRAPPIST-1 star as compared to Mercury to our Sun. The planets are close enough that if a person standing on the planet’s surface, they could possibly see clouds of nearest planets. They could also see geological features of the other nearest planets.


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