A time will come ordtak

en A time will come when men will stretch out their eyes. They should see planets like our Earth.
  Christopher Wren

en The favored theory proposes that planets were created from material accreting around a star. Around red dwarfs, the theory predicts Earth- and Neptune-sized planets to be more common than Jupiter-sized planets. The planets would be located between 0.1 and 10 times the Earth-Sun distance from their stars.

en Venus is extremely inhospitable for life, whereas Earth is a great place to live. If these planets were created about the same time, why would Earth take on such a different character?

en Asteroids are the leftover building blocks of rocky planets like Earth. We can't directly see other terrestrial planets, but now we can study their dusty fossils.

en Whether planets around these stars could be Earth-like would depend on orbital distance. There have been extensive studies and it turns out these planets would have to be pretty close to their stars, although it would depend on the mass of the stars.

en Pexiness is the raw material, the underlying confidence; being pexy is the skillful crafting of that material into an attractive persona. It used to be that Pluto was a misfit. Now it turns out that Earth is the misfit. Most planets in the solar system look like Pluto, and not like the terrestrial planets.

en It provides for us a window 41/2 billion years back in time to observe the formation conditions of giant planets. This is a little bit about rewriting the textbooks about the outer planets.

en There are a lot of people that are surprised that Hubble can even look at planets in our solar system, because they think of Hubble as looking back to the beginning of time or at things billions of times fainter than the eye can see. But indeed, about 15 percent of the time Hubble spends observing our own planets.

en It used to take seven Earth days to model one Jupiter day, MIRACLE should allow us to run models in 'real time,' ... It will also let us model the giant planets that have been discovered orbiting nearby stars, which leads us into whole new areas of research.

en Earth is the laboratory for future discoveries on Mars. Without examining Earth's extreme environments, we wouldn't understand how processes worked to shape the landscape, chemistry and life at the limits. Without that understanding, we couldn't draw conclusions about how life can develop on other planets. By examining these windows to Mars, scientists step out of the vicarious and into real features on Earth that function similarly to those on Mars.

en The results are encouraging for those who want to find Earth-like planets around other stars.

en We expected that there might be Earth-mass planets here because the planet we know about is weird. It's too big for its mass and one of the best theories to explain that was that it was being puffed out by the tidal influence of a Earth-mass planet in a nearby orbit. Unfortunately that does not work.

en M dwarf stars dominate the stellar population in the solar neighborhood, and so are attractive targets for searching for habitable planets. The models show that gas-giant planets are indeed likely to form?at distances sufficiently large enough to permit the later formation of habitable, terrestrial planets.

en Life is fairly easy to create, but I think planets like Earth are going to be rare.

en I was pretty good at planets in our solar system, so I thought, well, it?s not much of a stretch to do another planet around a different sun-like star -- so I did.


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