Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. For a time, the Hubble telescope was the brunt of jokes and subject to the wrath of those who believed the U.S. government had spent too much money on space projects that served no valid purpose. The Hubble was sent into orbit with a satellite by the Space Shuttle Discovery in 1990 amid huge hype and expectation. Yet after it was in position, it ...
Phạm Minh Trí | Chat Online | |
03/09 12:41:49 (Tiếng Anh - Lớp 12) |
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.
For a time, the Hubble telescope was the brunt of jokes and subject to the wrath of those who believed the U.S. government had spent too much money on space projects that served no valid purpose. The Hubble was sent into orbit with a satellite by the Space Shuttle Discovery in 1990 amid huge hype and expectation. Yet after it was in position, it simply did not work, because the primary mirror was misshapen. It was not until 1993 that the crew of the Shuttle Endeavor arrived like roadside mechanics, opened the hatch that was installed for the purpose, and replaced the defective mirror with a good one.
Suddenly, all that had originally been expected came true. The Hubble telescope was indeed the “window on the universe,” as it had originally been dubbed. When you look deep into space, you are actually looking back through time, because even though light travels at 186,000 miles a second, it requires time to get from one place to another. In fact, it is said that in some cases, the Hubble telescope is looking back eleven billion years to see galaxies already forming. The distant galaxies are speeding away from Earth, some traveling at the speed of light.
Hubble has viewed exploding stars such as the Eta Carinae, which clearly displayed clouds of gas and dust billowing outward from its poles at 1.5 million miles an hour. Prior to Hubble, it was visible from traditional telescopes on earth, but its details were not ascertainable. But now, the evidence of the explosion is obvious. The star still burns five million times brighter than the sun and illuminates clouds from the inside.
Hubble has also provided a close look at black holes, which are described as cosmic drains. Gas and dust swirl around the drain and are slowly sucked in by the incredible gravity. It has also looked into an area that looked empty to the naked eye and, within a region the size of a grain of sand, located layer upon layer of galaxies, with each galaxy consisting of billions of stars.
The Hubble telescope was named after Edwin Hubble, a 1920s astronomer who developed a formula that expresses the proportional relationship of distances between clusters of galaxies and the speeds at which they travel. Astronomers use stars known as Cepheid variables to measure distances in space. These stars dim and brighten from time to time, and they are photographed over time and charted. All the discoveries made by Hubble have allowed astronomers to learn more about the formation of early galaxies.
The author states that Edward Hubble ___________ .
Lựa chọn một trả lời để xem Đáp án chính xác Báo sai đáp án hoặc câu hỏi |
A. developed the Hubble telescope. 0 % | 0 phiếu |
B. developed a mathematical formula to measure speed and distances between galaxies. 0 % | 0 phiếu |
C. was the first person to use the Hubble telescope. 0 % | 0 phiếu |
D. was a politician who sponsored funding in Congress. 0 % | 0 phiếu |
Tổng cộng: | 0 trả lời |
Trắc nghiệm liên quan
- Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. For a time, the Hubble telescope was the brunt of jokes and subject to the wrath of those who believed ... (Tiếng Anh - Lớp 12)
- Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. For a time, the Hubble telescope was the brunt of jokes and subject to the wrath of those who believed ... (Tiếng Anh - Lớp 12)
- Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. For a time, the Hubble telescope was the brunt of jokes and subject to the wrath of those who believed ... (Tiếng Anh - Lớp 12)
- Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. For a time, the Hubble telescope was the brunt of jokes and subject to the wrath of those who believed ... (Tiếng Anh - Lớp 12)
- Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. For a time, the Hubble telescope was the brunt of jokes and subject to the wrath of those who believed ... (Tiếng Anh - Lớp 12)
- Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the questions. Fill in the appropriate word in question 30 After a busy day of work and play, the body needs to rest. ... (Tiếng Anh - Lớp 12)
- Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the questions. Fill in the appropriate word in question 29 After a busy day of work and play, the body needs to rest. ... (Tiếng Anh - Lớp 12)
- Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the questions. Fill in the appropriate word in question 28 After a busy day of work and play, the body needs to rest. ... (Tiếng Anh - Lớp 12)
- Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the questions. Fill in the appropriate word in question 27 After a busy day of work and play, the body needs to rest. ... (Tiếng Anh - Lớp 12)
- Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the questions. Fill in the appropriate word in question 26 After a busy day of work and play, the body needs to rest. ... (Tiếng Anh - Lớp 12)
Trắc nghiệm mới nhất
- Dialogue completion: Choose A, B, C, or D to complete each dialogue. Mike: You’ve been working out regularly, haven’t you? Nhung: _____________ (Tổng hợp - Lớp 12)
- You can’t just bury your head in the sand and hope that this problem goes away, you know. (Tổng hợp - Lớp 12)
- Antonyms: Choose A, B, C, or D that has the OPPOSITE meaning to the underlined word/ phrase in each question. Why do you always contradict me and say that what I’m saying isn’t true? (Tổng hợp - Lớp 12)
- ‘I want each and every one of you here to put forward as many suggestions as possible’, said the boss bossily. (Tổng hợp - Lớp 12)
- Synonyms: Choose A, B, C, or D that has the CLOSEST meaning to the underlined word/ phrase in each question. The outer structure of the building has been completely renovated and the interior decorators will be starting inside next week. (Tổng hợp - Lớp 12)
- At the end of the performance, the audience _______ the cast of Mamma Mia! by giving them a standing ovation. (Tổng hợp - Lớp 12)
- You should _______ a professional to check your house for earthquake damage, just to be sure there’re no hidden cracks that could cause problems later. (Tổng hợp - Lớp 12)
- If the school _______ aren’t written down anywhere, how are students supposed to know what they are to follow? (Tổng hợp - Lớp 12)
- Tom Cruise wouldn’t be the star he is today _______ made a good impression in his early films. (Tổng hợp - Lớp 12)
- Pia has always wanted to be a travel _______ and take pictures of exotic places. (Tổng hợp - Lớp 12)