Astrobiologist Biography PDF
Astrobiologists are who,,study the origins, evolutions, distribution, and future of life in the universe… Other common definitions are the study …
Astrophysicists
Kalpana Chawla Biography PDF
Kalpona Chawola was the first Indian origin woman and the 2nd Indian person to fly in space,,, after astronaut Rakesh …
Neil Amstrong Biography PDF
Neil Armstrong was an American astronaut and was the 1st person to walk on the Moon. Neil Armstrong was a …
100 Influential Scientists PDF
Here 100 influential scientists are listed, with their inventions and biography…These scientists were changed the world…Read about them …