evolution
Alien Minds I: Are Extraterrestrial Civilizations Likely to Evolve?
Paul Patton begins a three-part series on the evolutionary biology of aliens. Will they follow the same direction as life…
Nearby Supernovas Showered Earth With Iron
We all know that we are "made of star-stuff," with all of the elements necessary for the formation of planets and even…
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Mars Loses an Ocean But Gains the Potential for Life
It's hard to believe it now looking at Mars' dusty, dessicated landscape that it once possessed a vast ocean. A…
Defining Life II: Metabolism and Evolution as clues to Extraterrestrial Life
In the movie "Avatar", we could tell at a glance that the alien moon Pandora was teeming with alien life.…
New Simulation Models Galaxies Like Never Before
Astronomy is, by definition, intangible. Traditional laboratory-style experiments that utilize variables and control groups are of little use to the scientists who…
The Origins of Life Could Indeed Be “Interstellar”
Some of science's most pressing questions involve the origins of life on Earth. How did the first lifeforms emerge from…
From Eternity to Here: The Amazing Origin of our Species (in 90 Seconds)
From the initial expansion of the Big Bang to the birth of the Moon, from the timid scampering of the…
Alien Life May Not Be So Alien – If It Exists At All
[/caption] Are we too hopeful in our hunt for extraterrestrial life? Regardless of exoplanet counts, super-Earths and Goldilocks zones, the…
How Plants May Have Helped Create Earth’s Unique Landscapes
[/caption] According to conventional thinking, plant life first took hold on Earth after oceans and rivers formed; the soil produced…
Key Step in Evolution Replicated by Scientists – With Yeast
[/caption] One of the great puzzles in science has been the evolution of single-celled organisms into the incredibly wide variety…