What water, chemistry and temperature cycles fostered the chemical reactions that allowed life to emerge on our planet? Because life arose in the largely unknown surface conditions of Earth’s early ...

But he agrees with Seager that the best chance of finding life will be on an Earth-like planet orbiting a sunlike star. The ELT and its ilk will be fantastic at gathering light, but even those ...

We live in a golden age for space exploration. Scientists are gathering massive amounts of new information and scientific evidence at a record pace. Yet the age-old question remains unanswered ...

Maps can explain Life’s presence on planet Earth. This blending of biology and geography now constitutes the discipline known as “biogeography.” As a body of science-based knowledge ...

Earth is our home planet, and it's the only place in the universe where we know for certain that life exists. Earth formed over 4.5 billion years ago from a swirling cloud of gas and dust squished ...

From helping plants to colonize terrestrial earth to treating disease in ... advantage over cold-blooded reptiles, then the planet’s dominant life forms. “They’re hot,” explains Arturo ...

potentially increasing the likelihood of intelligent life existing on other planets. A super-Earth, HD 20794 d, has been confirmed within a habitable zone 20 light years from Earth. The planet ...

Some scientists suggest prehistoric glaciers hold the answers to how life evolved ... ago—our planet would have been unrecognizable, according to one idea. Known as the Snowball Earth hypothesis ...