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NASA, the U.S. space agency, believes there's a good chance that we're not alone
NASA, the U.S. space agency, believes there's a good chance that we're not alone in the universe. Last fall, NASA began a new project called the High Resolution Microwave Survey (HRMS). Its aim: to find evidence of life in one of the billions of galaxies in the universe.
The search for intelligent life on other planets isn't new. It began almost 100 years ago. That's when scientists built a huge transmitter to send radio waves into space. Scientists thought smart beings on other planets might pick up the signals.
Scientists also have sent a message about humans and our solar system to a nearby constellation (星座 ). But because the constellation is 25,000 light years away, a return message wouldn't reach Earth for 50,000 years! So don't wait up for an answer.
So far, no extraterrestrial (地球外的 ) beings that we know of have returned our “ calls. ” But according to Dr. Jill Tarter, an HRMS scientist, we haven't exactly had our ears wide open. “ Now, however, ” says Dr. Tarter, “ we've built the tools we need to listen well.”
Last October, Dr. Tarter switched on the largest radio receiver in the world. It's an enormous metal bowl stretching 1,000 feet across a valley in Puerto Rico.
Meanwhile, another NASA scientist turned on a huge radio receiver in California's Mojave Desert. NASA hopes these big dishes-and others around the world-will pick up radio signals from new world.
Dr. Frank Drake has been searching for life in outer space for years. He explains the HRMS project this way: To listen to your radio, you move the tuner on the dial until the channels come in loud and clear: Now imagine radio receivers that scan our galaxy “listening” to 14 million channels every second. That's what NASA's radio receivers in Puerto Rico and California are doing.
But that's not all. Powerful computers hooked to the receivers examine every signal carefully. The computers try to match the signals to ones that scientists already recognize, such as human-made signals. If they can't, Drake and Tarter check on them. “It could prove there is radio technology elsewhere in the universe, ” says Dr. Tarter. “ And that would mean we're not alone. ” 26、NASA scientists started a new project in order to ___.
A、discover life in other galaxies
B、send human beings into space
C、find evidence of a new galaxy
D、confirm the number of galaxies
27、According to Dr.Jill Tarter ,the reason why we haven't received any return any return messages from outer space is that_.
A、our ears are not sharp enough to hear them
B、our equipment hasn't been good enough
C、it takes millions of yuars for them to reach us
D、it takes quite a long time to send them
28、Dr.Jill Tarter compares the large receiver to _.
A、the human ear
B、the universe
C、a metal bowl
D、a huge dish
29、According to Dr.Frank Drake ,NASA's radio receivers in Puerto Rico and California are _.
A、trying to check on every channel carefully
B、moving the tuner on the dial for clear channels
C、scanning the universe for possible signals
D、picking up radio signals from new world
30、The best title of this passage is ______.
A、Signals from the Space
B、The Invention of New Radio Receivers
C、The Intelligent Life in Outer Space
D、NASA Listens for Space Neighbors

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更多“NASA, the U.S. space age…”相关的问题

第1题

The great significance of Voss' findings lies in________. I. strengthening his determination to join in space flights II. furthering his understanding of NASA III. consolidating his astronaut status in NASA programs
A．I only
B．II only
C．I , II and III all included
D．I and. II only

此题为多项选择题。请帮忙给出正确答案和分析，谢谢！

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第2题

When Mike Kelly first set out to build his own private space-ferry service, he figures his bread-and-butter business would be lofting satellite into high earth orbit. Now he thinks he may have figured wrong. "People were always asking me when they could go," says Kelly, who runs Kelly Space Technology, "I realized the real market is in space tourism."
According to preliminary market surveys, there are 10,000 would-be space tourists willing to spend $1 million each to visit the final frontier. Space Adventures in Arlington have taken more than 130 deposits for a two-hour, $98,000 space tour tentatively set to occur by 2005. This may sound great, but there are a few hurdles: Putting a simple satellite into orbit--with no oxygen, lift: support or return trip necessary—already costs an astronomical $2,200/kg. And that doesn't include the cost of insuring rich and possibly litigious (爱打官司的) passengers. The entire group of entrepreneurs trying to comer the space- tourism market has between them "just enough money to blow up one rocket".
The U.S. space agency has plenty of money but zero interest in making space less expensive for the little guys. So the little guys are racing to do what the government has failed to do: design a reusable launch system that's inexpensive, safe and reliable. Kelly Space's prototype looks like a plane that has sprouted rocket engines. Rotary Rocket in California has a booster with rotors to make a helicopter-style. return to earth. The first passenger countdowns arc still years away, but bureaucrats at the Federal Aviation Administration in Washington arc already informally discussing flight regulations. After all, you can't be too prepared for a trip to that galaxy far, far away.
Which of the following is the best title for the passage？
A．Take Vacations in Space
B．Building Hotels in Space
C．Flight Regulations in Space Travels
D．Cost of Space Traveling

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第3题

With human footprints on the moon, radio telescopes listening for messages from alien creatures (who may or may not exist), technicians looking for celestial and planetary sources of energy to support our civilization, orbiting telescopes' data hinting at planetary systems around other stars, and political groups trying to figure out how to save humanity from nuclear warfare that would damage life and eliminate on a planet-wide scale, an astronomy book published today enters a world different from the one that greeted books a generation ago. Astronomy has broadened to involve our basic circumstances and our mysterious future in the universe. With eclipses and space missions broadcast live, and with NASA, Europe, and the USSR planning and building permanent space stations, astronomy offers adventure for all people, an outward exploratory thrust that may one day be seen as an alternative to mindless consumerism, ideological bickering, and wars to control dwindling resources on a closed, finite Earth.
Today's astronomy students not only seek an up-to-date summary of astronomical facts: they ask, as people have asked for ages, about our basic relations to the rest of the universe. They may study astronomy partly to seek points of contact between science and other human endeavors: philosophy, history, politics, environmental action, even the arts and religion.
Science fiction writers and special effect artists on recent films help today's students realize that unseen worlds of space are real places—not abstract concepts. Today's students are citizens of a more real, more vast cosmos than conceptualized by students of a decade ago.
In designing this edition, the Wadsworh editors and I have tried to respond to these developments. Rather than jumping at the start into murky waters of cosmology, I have begun with the viewpoint of ancient people on Earth and worked outward across the universe. This method of organization automatically (if loosely) reflects the order of humanity's discoveries about astronomy and provides a unifying theme of increasing distance and scale.
This passage is most probably taken from
A．an article of popular science.
B．the introduction of a book of astronomy.
C．a lecture given by the author to astronomy students.
D．the preface of a piece of science fiction.

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第4题

Americans don't like to lose wars. Of course, a lot depends on how you define just what a war is. There are shooting wars—the kind that test patriotism and courage—and those are the kind at which the U.S. excels. But other struggles test those qualities too. What else was the Great Depression or the space race or the construction of the railroads？ If Americans indulge in a bit of flag-waving when the job is done, they earned it.
Now there is a similar challenge: global warming. The steady deterioration (恶化) of the very climate of this very planet is becoming a war of the first order, and by any measure, the U.S. is losing. Indeed, if America is fighting at all, it's fighting on the wrong side. The U.S. produces nearly a quarter of the world's greenhouse gases each year and has stubbornly made it clear that it doesn't intend to do a whole lot about it. Although 174 nations approved the admittedly flawed Kyoto accords to reduce carbon levels, the U.S. walked away from them. There are vague promises of manufacturing fuel from herbs or powering cars with hydrogen. But for a country that tightly cites patriotism as one of its core values, the U.S. is taking a pass on what might be the most patriotic struggle of all. It's hard to imagine a bigger fight than one for the survival of a country's coasts and farms, the health of its people and the stability of its economy.
The rub is, if the vast majority of people increasingly agree that climate change is a global emergency, there's far less agreement on how to fix it. Industry offers its plans, which too often would fix little. Environmentalists offer theirs, which too often amount to na; ve wish lists that could weaken America's growth. But let's assume that those interested parties and others will always be at the table and will always demand that their voices be heard and that their needs be addressed. What would an aggressive, ambitious, effective plan look like—one that would leave the U.S. both environmentally safe and economically sound？
Halting climate change will be far harder. One of the more conservative plans for addressing the problem calls for a reduction of 25 billion tons of carbon emissions over the next 52 years. And yet by devising a consistent strategy that mixes short-term solutions with far-sighted goals, combines government activism with private-sector enterprise and blends pragmatism (实用主义) with ambition, the U.S. can, without major damage to the economy, help halt the worst effects of climate change and ensure the survival of its way of life for future generations. Money will do some of the work, but what's needed most is will. "I'm not saying the challenge isn't almost overwhelming," says Fred Krupp. "But this is America, and America has risen to these challenges before."
What does the passage mainly discuss？
A．Human wars.
B．Economic crisis.
C．America's environmental policies.
D．Global environment in general.

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第5题

本季合作款中共有那些系列是鞋服均有的（）

A、Hello Kitty、NASA、Superwings超级飞侠

B、NASA、Superwings

C、Hello Kitty、NASA

D、Hello Kitty

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第6题

本季的联名款产品有哪些（）

A、超级飞侠

B、NASA

C、hello Kitty

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第7题

MSG-3文件是由（）颁布的文件。

A、FAA

B、ICAO

C、ATA

D、NASA

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第8题

使用灵活、易于安装和管理、适用于文件共享，不适应于数据库（)。

A、NASA

B、NAS

C、DAS

D、SAN

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第9题

下列哪一个不是船级社的英文缩写（）

A、CS

B、LR

C、NASA

D、BS

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第10题

2018年5月5日，NASA“洞察号”发射升空，将成为“深入火星内部”的首个航天器（）

是

否

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第11题

Top 3 funniest and well-paid jobs
Ferrari driving instructor Annual salary:$120,000 per year
Yes,it's a niche,but that's why it pays so well and is so much fun.Anthony Lazzaro,a former NASCAR driver who stillraces professionally,earns $500 to $1,000 a day as a Ferrari instructor,he told WalletPop in an e-mail.Even at the low end,that adds up to S120,000 for 12 months of work.
The classes can cost $9,000 or so,and if you can't afford that and still want to see and hear what it's like to be in a Ferrariat 150 mph,a YouTube video gives an idea.The classes,whether through him or someone else,are not for the meek.
Astronaut Annual salary:$100,000 per year
What could be more fun than floating in space? According to NASA,salaries for civilian astronaut candidates are based onthe federal government's general schedule pay scale for grades GS-12 through GS-13.Each person's grade is determined byacademic achievements and experience.Currently,a GS-12 starts at $65,140 per year and a GS-13 can earn up to $100,701 peryear.Military astronauts remain in an active duty status for pay,benefits,leave,and other similar military matters.
Any adult who is in excellent physical condition and meets the basic qualifications can be selected to enter astronaut training.But for mission specialists and pilot astronauts,the minimum requirements include a bachelor's degree in engineering,science or math,followed by three years of related experience and preferably an advanced degree.Pilot astronauts must have atleast 1,000 hours of experience in jet aircraft,and they need better vision than mission specialists.
It's a tough field to get into.There are more than 4,000 applicants for about 20 openings every two years.But go ahead,fillout an application.
Winemaker Annual salary:$93,000 per year
You don't have to buy a vineyard to be a vintner or winemaker.Many wineries hire someone to run the winemakingbusiness and oversee production,the staff and the budget.
According to JobMonkey.com,the general requirements include a bachelor's degree in oenology (the study of making wine)or another related degree,at least five-year experience in winemaking,a strong knowledge of the pertinent grape varietals,andstrong technical winemaking skills.It may take a while to get such a fun job,but taking good wine home to taste after worksounds like a pretty nice job perk.
(1)Anthony Lazzaro earns $500 to $1,000 a day as a NASCAR driver.
A正确
B错误
(2)Ferrari driving classes that cost $9,000 or so are not for the meek.
A正确
B错误
(3)Any adult who is in excellent physical condition and meets the basic qualifications can be selected to enter astronaut training.
A正确
B错误
(4)For mission specialists and pilot astronauts,the minimum requirements include a master's degree inengineering,science or math.
A正确
B错误
(5)If you want to be a winemaker,you have to buy a vineyard.
A正确
B错误

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