biology

Category archives for biology

“I know perfectly well that at this moment the whole universe is listening to us, and that every word we say echoes to the remotest star.” -Jean Giraudoux Since the 1930s, humans have been broadcasting radio signals powerful enough to be picked up by a sufficiently advanced alien civilization, even one located many light years…

“When you arise in the morning, think of what a precious privilege it is to be alive — to breathe, to think, to enjoy, to love.” –Marcus Aurelius How old is life on Earth? If all you had to go on was the fossil record, you’d run into severe trouble once you went back more than one…

“This suggests a robust biological response. These analyses support the interpretation that the Viking LR experiment did detect extant microbial life on Mars.” -Bianciardi, Miller, Straat and Levin On July 20, 1976, the Viking 1 lander touched down onto the Martian surface, followed just a few weeks later by Viking 2. On board both landers…

“It was the Venus I had prayed to, it was my prayer, though I had no such words. They filled my eyes with tears and my heart with inexpressible joy.” -Ursula Le Guin If you were to rewind the Solar System to the very beginning, with only imperceptibly different initial conditions, how often would Earth…

“The privilege of a lifetime is being who you are.” –Joseph Campbell Making up some 85% of the mass in our Universe, dark matter is necessary to explain the motions of individual galaxies, the grouping and clustering of assemblies of galaxies, the large-scale structure of the Universe and more. But on a much closer-to-home level,…

“The world communicates subtly. Most people don’t hear or see the signs because they’re so wrapped up in their day-to-day lives.” -Doug Cooper If you wanted to see if a planet was inhabited in Star Trek, all you had to do was scan for signs of life. With current technology, that’s really hard to do!…

“Do not look at stars as bright spots only. Try to take in the vastness of the universe.” -Maria Mitchell The analogies between small-scale, living things and large-scale, cosmic entities are abundant: between a neuron and the Universe’s large-scale structure; between an atom and a solar system; between the stars in a galaxy and the…

“Mars is much closer to the characteristics of Earth. It has a fall, winter, summer and spring. North Pole, South Pole, mountains and lots of ice. No one is going to live on Venus; no one is going to live on Jupiter.” -Buzz Aldrin When we think about life in the Universe, we think about…

Was Earth Born With Life On It? (Synopsis)

“When you arise in the morning, think of what a precious privilege it is to be alive — to breathe, to think, to enjoy, to love.” –Marcus Aurelius How old is life on Earth? If all you had to go on was the fossil record, you’d run into severe trouble once you went back more than one…

When we look at the vast expanse of stars in the night sky, we can’t help but wonder what else is out there. Not just at the gas giants, rocky worlds, comets, asteroids, moons, and homeless planets strewn throughout our galaxy and all the galaxies beyond our own, but about what life — what possibilities…