astronomer

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  • Volunteer scientists discover two possible planets, tell NASA it missed a spot

    by 
    Mat Smith
    Mat Smith
    09.22.2011

    Proving it's not all about edu-mah-cation, a group of casual star-gazers has stumbled upon what might well be a pair of new planets. Following on from gamers' success with complicated medical puzzles, an army of 40,000 online volunteer astronomy nerds signed up to the Planet Hunters project to help mine through NASA data. One of the possible planets they discovered is roughly two and a half times the size of Earth, while the other a whopping eight times bigger than this revolving ball of blue and green we call home. The project uses data from NASA's Kepler telescope, which registers fluctuations in brightness as objects pass in front of distant stars -- a setup that's helped scientists discover 1,235 potential alien planets in its first four months. Obviously, though, the technology isn't perfect, which is where the project's muggle volunteers (assisted by Oxford and University of Chicago researchers) come in. They've been combing through NASA's readings and are now sifting through the next 90 days of Kepler observations. [Image credit: NASA]

  • Iced-out diamond planet catches astronomers' eyes

    by 
    Lydia Leavitt
    Lydia Leavitt
    08.28.2011

    If you thought Kim Kardashian's engagement ring was a ridiculous rock, you haven't seen the ludicrously large diamond planet, J1719-1438. Scientists at the Swinburne University of Technology in Melbourne recently spotted this celestial body that's so dense, it's believed to be crystalline carbon -- i.e. a ginormous diamond similar in size to Jupiter. Since the '60s, astrophysicists like Marc Kuchner have theorized that carbon-heavy stars can burn out, crystallize and form diamonds under the right pressure. Supporting the idea, a white dwarf star spotted in 1992, BPM 37093, had cooled and crystallized over the course of 12 years -- even copping the nickname "Lucy" after the Beatles jam. Although astronomers in Australia, Britain and Hawaii have all identified the newly spotted precious planet J1719-1438, they are still unsure if the crystallized carbon rock will be all sparkly mountains up close -- dashing the hopes and dreams of material girls everywhere.

  • Russian eclipse enthusiasts launch floating globe to shoot the moon

    by 
    Christopher Trout
    Christopher Trout
    06.21.2011

    That globe, which launched June 15th, was attached to a weather balloon, and apparently carried with it a GPS / GSM tracker, two GoPro cameras, two Canon cameras, and one Buzz Lightyear figurine. The mission? Capture last week's lunar eclipse. Lucky for us, the mission was successful and both the cartoon astronaut and the accompanying film were successfully recovered. The resulting photographs are quite stunning, but you don't have to take our word for it. If you missed Google's live stream, you can catch up with Buzz and the team at the source link below.

  • Astronomers snap black hole murder in graphic detail (video)

    by 
    Sharif Sakr
    Sharif Sakr
    05.22.2011

    We tend to imagine a black hole sucking everything around it straight into oblivion. The truth, however, is even more gruesome. Astronomers have just captured an ultra hi-res image of our neighbouring galaxy, Centaurus A, and it helps to reveal what actually happens. Matter is yanked helplessly towards a black hole at the galaxy's core, but it refuses to die quietly. For some unknown reason, it erupts as it falls, spewing out vast plumes of particles -- like blood from celestial murder. These death throes emit radio waves, allowing us to witness them using radio telescopes even though we are 12 million light-years away. If only we were closer; if only we could intervene. Alas, all we can do is watch the video after the break and hit the source links for a fuller explanation -- though, admittedly, none of those sound like awful options.

  • Why did Pluto lose its planet status? Because it never mattered enough

    by 
    Aaron Souppouris
    Aaron Souppouris
    12.30.2010

    It's kind of hard to accept, Pluto has always been our favorite underdog, but the truth is that the Solar System's ninth planet was never really significant enough to earn that designation. Such is the coldly logical reason given for its removal from the planetary annals by a man who had a lot to do with its demise. Caltech astronomer Mike Brown discovered Eris, what he'd hoped was the tenth planet, back in 2005, but its extreme distance from the Sun and diminutive (by planetary standards) dimensions disqualified it from consideration. Unfortunately, its discovery is what doomed Pluto to be downgraded to a "dwarf planet," though Mike's not shedding too many tears over it. In fact, he's gone and written a book about the whole thing, the smug planet destroyer that he is. You don't have to buy it to learn more, however, as the source link has an interview with Mike all ready and waiting.

  • Mammoth liquid mirror telescope could be constructed on the moon

    by 
    Darren Murph
    Darren Murph
    05.29.2007

    Roger Angel's idea to launch a 100-meter liquid mirror telescope on the moon is far from the only mammoth-sized dream that could be headed into space, and if the feasibility study shows enough promise, it just might happen. The University of Arizona astronomer mentioned that the idea of putting an "enormous liquid-mirror telescope on the moon that could be hundreds of times more sensitive than the Hubble Space Telescope" had been around awhile, but apparently it's finally getting the attention it deserves. If constructed, it would easily be the largest ever built, and would reportedly allow scientists to "study the oldest and most distant objects in the universe, including the very first stars." The project is being investigated on behalf of NASA's Institute for Advanced Concepts, and while these type devices are "relatively cheap" to build, it should be noted that it's being compared (at least financially) to the $4.5 billion James Webb Space Telescope. Now, where's the signup sheet for freelance contractors to get in on the moon-based build process?[Via Wired]