There are countless aspects to astrobiology, but for the purposes of this list, we will focus on the origin of life. Astrobiologists are scientists that study the origin of life, the search for extraterrestrial life, and other related topics. The search for life beyond Earth is a global research effort that covers all areas of science, including biology, geology, chemistry, physics, astronomy, and others. Astrobiologists work to answer questions about how life formed on Earth and how it could have arisen in different forms around other stars in our galaxy or in other galaxies
The field of astrobiology is relatively new; its origins date back to the 1950s with the discovery of evidence of biogenic activity on Mars.
Life is not a miracle. It is a natural phenomenon, and can be expected to appear whenever there is a planet whose conditions duplicate those of theHarold Urey
However life started, once established, it persisted for over 3.5 billion years and evolved from microbial slime to the sophistication of human civilization.David C. Catling
Oxygen deprivation and supplemental oxygen are both bio-hazards for Mauna Kea workersSteven Magee
