Sentence examples for for complex life from inspiring English sources

Dr. Brownlee, the astronomer and co-author, said the odds for complex life were similarly bad at galactic edges.

Based on their findings, they believe that the planet may have had too little oxygen for complex life to evolve.

In the vacuum of space, radiation travels unimpeded, approaching dangerous levels for complex life forms such as humans.

Amino acids are the building blocks of proteins and are widely seen as being critical for complex life to exist anywhere in the universe.

After all, one important feature of the Earth is its age, which has given time for complex life to evolve on its surface.

But radiation and chaotic gravitational encounters with other stars make the center of a galaxy too hazardous for complex life to survive, leaving a zone midway out from the galactic center as the favored abode.

Therefore we should not neglect planets orbiting stars which are somewhat more massive the Sun when searching for evidence of complex life: the 4.2 Ga that it took on Earth to get to the Cambrian explosion need not be a universal timescale.

Are Molecular Alphabets Universal Enabling Factors for the Evolution of Complex Life?

For instance, he said, it shows how the giant planets discovered so far outside the solar system bode ill for the development of complex life.

According to the book, the slow movement and recycling of planetary crust into a planet's hot interior are key ingredients for the evolution of complex life.

In the book "Rare Earth" (Copernicus, 2000), which explored the likelihood that advanced civilizations dot the cosmos, Dr. Peter D. Ward and Dr. Donald Brownlee of the University of Washington argued in a long chapter on plate tectonics that the slow recycling of planetary crust was uncommon in the universe yet essential for the evolution of complex life.