What fraction of the twinkling lights you see at night have Earths?
Our galaxy is 10 billion years old. The Earth is only 4.5 billion years old. We are a firefly flicker in the great astrobiology of the galaxy. - Geoffrey Marcy
Our galaxy is 10 billion years old. The Earth is only 4.5 billion years old. We are a firefly flicker in the great astrobiology of the galaxy.
- Geoffrey Marcy
In the next century or two, we humans will have planet-finder telescopes that span our solar system with mirrors strewn from here to Jupiter, giving … - Geoffrey Marcy
In the next century or two, we humans will have planet-finder telescopes that span our solar system with mirrors strewn from here to Jupiter, giving …
What fraction of the twinkling lights you see at night have Earths? - Geoffrey Marcy
I'm at a funny crossroads, personally. I really want to turn my attention away from planet-hunting towards Search for Extra-Terrestrial Intelligence … - Geoffrey Marcy
I'm at a funny crossroads, personally. I really want to turn my attention away from planet-hunting towards Search for Extra-Terrestrial Intelligence …
A major puzzle for which nobody has an answer is this: is there some size at which the planets change their nature from water-rich planets like Neptu… - Geoffrey Marcy
A major puzzle for which nobody has an answer is this: is there some size at which the planets change their nature from water-rich planets like Neptu…
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