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New Large Rocky Planet Found

An anonymous reader writes "Discovery News is reporting the discovery of a super-sized rocky planet orbiting a red-dwarf. The star is located about 9000 ly from the sun. The planet consists of rock and ice and orbits at around the distance of asteroid belt. The planet could not grow to Jupiter size because the star is small and the system ran out of gas. The planet is about 13 earth masses and was discovered using the microlensing technique. Since most of the stars in the Milky Way are smaller than the sun, we should expect more of similar findings."

5 of 119 comments (clear)

  1. Ok Where are the E.T.s by CastrTroy · · Score: 2, Interesting

    I haven't been following this news too closely, so could someone please tell me if they've found any planets that are the size of earth? not 13 earth masses, but somewhere between 0.5 and 2 earth masses would be nice. I know that life can exist outside of conditions found on the earth, but it would be really cool to find intelligent life like ourselves. I'm not sure what evolution did on other planets, but I'd like to see what kind of muscles developed on organisms that lived on a planet with 13 times the mass of the earth.

    --

    Anthropic principle: We see the universe the way it is because if it were different we would not be here to see it.
    1. Re:Ok Where are the E.T.s by MichaelSmith · · Score: 2, Interesting
      somewhere between 0.5 and 2 earth masses would be nice.

      A planet that big is likely to have many large moons, much like the gas giant planets in our own solar system. The same goes for gas giants found around other stars.

      The nice thing about orbiting a large planet is that you get energy from tidal stress, which can help replace energy you would otherwise get from a star.

    2. Re:Ok Where are the E.T.s by ultranova · · Score: 2, Interesting

      Muscle just makes hollowpoints expand quicker.

      Stronger gravity makes things fall faster. This means that the beings living there will need faster reflexes to be able to walk, since they have less time to react. 13 times Earths gravity means that the beings will simply sidestep the bullet and watch as it sails past them in virtual slow motion. Assuming that they don't simply stand there and let it pounce of them, since their tissues will also need a much higher tensile strength to resist their local gravity.

      Or they can just go John Carter or Super-Saiyajin on you. Fighting someone from a higher gravity planet is going to hurt.

      --

      Forget magic. Any technology distinguishable from divine power is insufficiently advanced.

  2. Re:ya and so.... by rev_g33k_101 · · Score: 3, Interesting

    -1: Flamebait

    Hey, hey, hey, just because somebody has a critical opinion on something dose not make them flamebait!

    Come on, everyone knows science is incremental. 99% of progress is unremarkable in and of itself, but quite often the process involved allows greater leaps to occur. For instance, the microlensing they are using in these systems are a good advance in optics -- now what other uses can we think of? And that doesn't even count what we can't even predict.

    I would agree with you here but, the focus of the story is not the optic technology used in this find; it's the useless planet.

    The tech of the find is thrown in the story like packing peanuts, just filling space, and is overshadowed by the icy-rocky-planet-thingy.

    Your attitude is just demonstrative of what is wrong with people today, they cannot think past the immediate, and certainly don't understand how we got to where we are today (hint: it's not by only making major breakthroughs).

    Nope sorry, didn't miss the interesting optic comments in the story, but this was not billed as a story about how they found the planet.

    Plus I am not only looking for major breakthroughs here, just tired of hearing the same story rehashed every 2 weeks.

    --
    "The problem with defending the purity of the English language is that English is about as pure as a cribhouse whore."
  3. More planet stories, plus a news release by Science_Writer · · Score: 4, Interesting

    Hi, everyone. I wrote one of the original news releases about this planet discovery, so I'm very interested in the discussion of whether the "super-Earth" is exciting news or not. When I first found out about the planet (I work at Ohio State University; one of our astronomers heads the team that identified it) I knew I had to write a news release (I mean, this is a new planet!) but I also had to wonder how much of a splash the story would make in the media.

    Some 170 extrasolar planets have been discovered in the last decade, so there's already been a lot of news coverage. But it's easy to forget that before a decade ago, scientists had no real evidence of what other solar systems are like. This planet is unusual in that it's terrestrial, and its solar system doesn't seem to have any giant gas planets like Jupiter. So the find expands our ideas about what kinds of solar systems are out there, and it also suggests that we're getting closer to our goal of finding other Earth-mass planets.

    There's more information in the Ohio State news release, and the one written by my colleagues at the Harvard-Smithsonian Center for Astrophysics. There are also lots of other news stories out there right now, most notably by New Scientist, National Geographic, and Space.com.

    Pam Gorder