O'Reilly logo

Strange New Worlds by Ray Jayawardhana

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 9

Signs of Life

How Will We Find E.T.?

Once the invention of the telescope showed that the Earth is but one world among many, it opened the serious prospect of life on other planets. The reconnaissance within our solar system has revealed some tantalizing hints but no definitive evidence so far. Now that we are on the verge of finding extrasolar worlds with conditions hospitable for life, the question has gained a new urgency. Guided by remote observations of the Earth, clues about how the solar system’s three large rocky planets have evolved, and theoretical models of planets in other stellar environments, scientists are figuring out how best to search for extraterrestrial life. The quest has brought together researchers of different ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required