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 beam radio waves into space. Scientists thought smart beings on other planets might pick up the signals.
Scientists also have beamed a message about humans and our solar system to a nearby constellation. 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 Ets ( Extraterrestrial beings ) that we know of have returned our "calls." But according to Dr. Jill Tarter, an HRMS scientist, we haven’t exact
A. communicate with the intelligent life on other planets
B. send human beings into outer space
C. know more about galaxies in the universe
D. discover life in other galaxies
The U.S. space agency, NASA, is planning to launch a satellite that scientists hope will answer fundamental questions about the origin and destiny of our universe. (41) _________________.
The prevailing theory of the universe’s origin, the "Big Bang" theory, says all matter and energy were once compressed into a tiny point. The density and resulting temperature were so enormous that, about 13-to-15-billion years ago by current estimates, a mighty explosion flung the matter hurtling outward in all directions. (42) _________________. They also ask, is the expansion accelerating Will the universe collapse What is its shape Scientists will seek explanations with NASA’s new Microwave Anisotropy Probe, abbreviated as MAP. (43) _________________. "MAP will take the ultimate baby picture, an image of the infant universe taken in the fossil light that is still present from the Big Bang," he says. "This glow, this radiation, is the oldest light
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