Gonzalez: In the larger context of the Milky Way galaxy, our Solar System is in the best location to initiate interstellar missions. In summary, we here confirm and expand upon recent studies that argue that the Earth and the Solar System are rare in the degree to which they facilitate space exploration.
That may help us understand how the Moon formed, say researchers. Yes, that seems odd, but the we know surprisingly little about how the Moon—which plays a very important role in enabling life on Earth—was formed.
Nothing seems to happen slower than previously thought. And the random collisions aren’t even in this version.
Amazing, all these accidents just happening at the same time in the same place for no reason at all. Or at least that’s the official story. Also note this vid on the probabilities of a single molecule forming by chance.
Around 565 million years ago, just when life was getting seriously underway: The finding, reported online January 28 in Nature Geoscience, supports an idea previously proposed by simulations that Earth’s inner core is relatively young. It also provides insight into how, and how quickly, Earth has been losing heat since its formation 4.54 billion years ago Read More…
We know far more about that now than we did then.
We are told that Earth and Mars are like two siblings who have grown apart: “There was a time when their resemblance was uncanny: Both were warm, wet and shrouded in thick atmospheres. But 3 or 4 billion years ago, these two worlds took different paths”: Long ago, Mars stopped changing, while Earth continued to Read More…