Astronomer

Students more inclined towards physics and mathematics subjects, can opt for a career in astronomy. Such candidates should complete their graduation in science/engineering subjects as a primary step. After completing graduation successfully, then they can look for Master's level courses like M.Sc astronomy and M.Tech (Space technology and applications) as well.
Searching for a rewarding job is the next step. Various Job opportunities exists in firms like:
1. Bhabha Atomic Research Centre (BARC).
2. Inter-University Centre for Astronomy and Astrophysics (IUCAA).
3. NASA.
4. Technology Information Forecasting and Assessment Council (TIFAC), etc.
Reputed institutions like Indian Institute of Astrophysics, Sri Venkateswara University, etc offer this kind of master level courses. M.Sc programs on streams of Astrophysics, Astrometeorology, Astrometry, Astrobiology, Astrogeology, etc are also suitable to build up a career in astronomy.

70 kg. Mass is a measure of the particles that makes up an object and the composition of the object does not change on the moon. However, the object's weight will change on the moon, just as it appears to change in an elevator.
The acceleration due to gravity on the earth is approximately 9.8 m/s^2, depending upon where an object is located. On the moon, the acceleration due to the moon's gravity is 1.6 m/s^2, which is approximately 1/6 that on the earth. Since an object's weight is dependent upon the pull of gravity, the object's weight will change with the pull of gravity. Since the moon does not strong gravity pull as earth, the object would weigh approximately 6 times more on the earth than on the moon. But the mass doesn't change. Thus a 70-kg object on the moon is still a 70-kg object on the earth.