Archive for the ‘ 太空宇宙 Space ’ Category
最近收到幾封關於火星和地球最接近的時間的新聞… 可惜這是三年前的新聞啦! 火星跟地球最接近的時候是2003年八月發生的事. 這”新聞”2005傳了一次過時的新聞, 今年又傳了一次假的新聞. 同樣的”一生人一次的機會”怎麼會這幾年來三次那麼多? 看NASA網站就知道啦~ 可惜呢 :S 我剛開始看NASA網站, 沒看年份, 所以也中招了~ 哈哈…. 現在的火星位於太陽的另一邊 (2006年8月), 想看也看不到嚕~ 上次火星比較接近地球是去年十月底. 下次應該是2007年底, 當然不會像2003的時候那麼亮囉. 相關網站: - NASA – Beware the Mars Hoax - Close Encounter with Mars (2006 Version) - Mars Hoax Returns 傳來傳去的訊息如下: [ READ MORE ]
從小就學會太陽系有九大行星. 不過最近科學家要redefine星球的意思. 新的definition可能會導致很多本來小小的asteroid也會變成planet…. 太陽系除了現在的 Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto 之外, 可能會在火星木星中間多加 Ceres; Pluto的月亮Charon可能也分類為行星; Pluto後面再多加新行星Xena (2003 UB313) – 20060816planets.pdf 新的行星definition: Planet: A round thing orbiting a star. More precisely, according to the draft definition: “A planet is a celestial body that (a) has sufficient mass for its self-gravity to overcome rigid body forces so [ READ MORE ]
隕石撞地球…!! 不過不是現在會發生的事情. 今天早上聽同事講說有一顆asteroid, 有0.1%機會與地球相撞. 真的嚇到了…. = =||| 是下個世紀初才會發生的事情. 到時候應該可以更準確的計算到底會不會真的撞到地球. 嗯….. 這其實不會影響到我們, 只會影響到我們的下一代和下下一代…… (from newscientist.com) Huge asteroid threatening Earth From: Agence France-Presse From correspondents in Paris March 03, 2006 AN asteroid capable of devastating an area the size of a sub-continent has about a one in 1000 risk of hitting Earth early next century, NASA said today. The rock, 2004 VD17, is [ READ MORE ]
看過很多Hollywood的電影. 故事裡都會發生一些現實有可能, 可是又不一定有可能的事情. 外星人來的話, 幾乎都一定是來侵襲地球, 而且永遠都是美國拯救世界. 有隕石要撞地球的話, 就用核武. 典型drama的話, 很多時候看起來最正經的就是壞人. 當一切看起來很穩定的時候, 一定有什麼來interrupt….. 以上都是一些電影裡的情節 = = 現實也說不定是這樣喔. 不過科學家有證實到最”流行”的核武炸隕石方法, 可能對地球的傷害會反而更大. 說可能放一顆夠重量的東西在隕石的軌道上, 這樣說不定隕石會被吸過去, 也就不會直接撞到地球了….. 不知道這方法可不可以. 只希望永遠都沒機會去證實! ‘Gravity tractor’ to deflect Earth-bound asteroids 18:00 09 November 2005 (NewScientist.com news service) Zeeya Merali NASA scientists have come up with a surprisingly simple yet effective way to deflect an Earth-bound asteroid – park a large spacecraft [ READ MORE ]
如果隕石裡面有生命的元素 (organic molecules), 那說不定人類是來自外太空來到地球的?? @@” (from New Scientist) Deep Impact collision ejected the stuff of life 13:10 07 September 2005 Maggie McKee Millions of kilograms of fine dust particles and water and a “surprisingly high” amount of organic molecules sprayed into space when NASA crashed its Deep Impact spacecraft into Comet 9P/Tempel 1 on 4 July 2005, reveal a [ READ MORE ]
南極比赤道還要熱的話… 真的不敢想像呢 ~”~ 土星的一個月亮就有出現了這樣的狀況….. (from ninemsn.com.au) Hotspot found on one of Saturn’s moons 20:35 AEST Wed Aug 31 2005 There is a hotspot on one of Saturn’s moons which should not be there and has yet to be explained, scientists said. It is located at the south pole of Enceladus, a moon with a diameter of just 500 km which [ READ MORE ]
傳說月球上有玉兔打餅?? 未來的月球上將會有”企鵝”在跳…… *摳摳臉* (from ninemsn.com.au) Space Penguin could hop around moon 20:36 AEST Wed Aug 31 2005 A robotic Lunar Penguin explorer could be hopping around on the moon by 2009, maker Raytheon Co said as it unveiled the concept lander at an aerospace conference. The unmanned lunar device, in development for two years, is a metre tall and weighs [ READ MORE ]