English Advanced I
The solar system is a crowded place. There are planets, a million of asteroids, trillions of comets. Everywhere we look there’s something. In the reading it said that there’s one place in our solar system that appears to be empty. It is not far, situated inside Mercury’s orbit. Some said that the emptiness is anillusion. But so far they can’t prove there are signs in there.
Since 1611 many scientist have made observations about this, but all haven’t proved anything.
In the 1850s Urbain Le Verrier announced that Mercury appeared to be affected by just such a body. His calculations indicated that the planets orbit slowly but steadily drifts. They gave this phenomenon a name, Vulcan.
As the decadesadvanced, telescopes got bigger and better able to spot small, faint objects. With this any planet or planetoid inside mercury’s orbit have been sighted. After this, Albert Einstein put an end to the idea of Vulcan. Le Verrie had relied on Newton’s formulation of the laws of gravity. What he didn’t know was that gravity actually follows ever-so-slightly different rules until Einstein formulated thetheory of relativity. This theory calculated that relativity alone neatly explained the slow change of its orbit, without the need for an intra-Mercurial planet. Instead of a planet Vulcan, maybe it made more sense to look for a whole bunch of vulcanettes, (vulcanoids). A big planet would have been relatively obvious, but perhaps smaller bodies could hide in the glare of the sun. Any object wouldvaporize and would be affected by that planet’s gravity (Mercury). These limitations define a ring of space that starts about 6.5 million miles from the sun and extends out to just under 20 million miles. Vulcanoids have a lower size limit so they would be swept clean out of the solar system by the sun’s surface.
Then it explained that there is really difficult to find these vulcanoids. One of thereasons is that there is really close to the sun. The only hope of finding one would be to observe it just after sunset or just before sunrise.
Finally it explained that there are two scientists that are really interested in the vulcanoids. Stern and Durda. They have been peering carefully at the hot desert between the sun and mercury for more than a decade. They built a special camera and flewwhere the sky is really clear but unfortunately at the height the sky is still too bright to find vulcanoids. Then it said that many spacecrafts have flied like Stereo, SDO and Messenger.
What I think is that these vulcanoids really exist, the scientist just need to be more patient and just need to be in the exact time at the exact place. There are a lot of things in the space that we can’teven imagine and these vulcanoids are one of those things. There are a lot of mysteries in the space and I believe there are all interesting. In the article it questioned why so many astronauts and scientists continue to search vulcanoids if all the proves and researches tell you that there are no vulcanoids on the space. What I think is that they still search for this because the space always giveyou surprises and maybe it’s harder to achieve orbits but this could tell us a lot about possible planets around other stars as well.
A. What is the theme or main idea of the article? State it in one topic sentence.
The main idea of this article is that there are a lot of mysteries in the space and this discover, the vulcanoids are one of them. It explained everything about the vulcanoidsand how difficult it is to find them.
B. “According to the article, it can be inferred that the vulcanoids are very difficult to find and so many scientists are still studying them because even when they don’t know so much about them, the space could give them a surprise and help them a little to find some information about them.
C. According to the article, the phrase “Nobody wants to...