Harbert, the brother of the Harbert telescope, will take a panoramic picture of the universe to solve the mystery of the dark energy

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original title: the Harbert telescope's brother WFIRST, will take the universe panoramic picture of the mystery dark energy

[Technews] science news following the James Space Telescope finalized in 2019 after the launch, the U.S. Space Agency (NASA) has begun to design a flagship astrophysics mission, is the wide field Infrared Survey Telescope (WFIRST), it is the same with the Harbert space telescope is sensitive, but the shooting area 100 times, is expected to the 2020 launch and capture the universe panorama, to explore the expansion of the universe seems to be accelerating, whether driven by dark energy.

Hubble eXtreme Deep Field (XDF) is an image, which is the deepest part of the universe seen in the visible light and shadow at present. It contains 13 billion 200 million years ago galaxy. If the photo taken by the Harbert space telescope is a good poster on the wall, the image taken by the wide field of view infrared measuring telescope will cover the entire wall.

Harbert very deep space, which contains 13 billion 200 million light-years away in the galaxy. (Source:By NASA; ESA; G. Illingworth, D. Magee, and P. Oesch, University, P., Oesch, and the right way.

wide field Infrared Survey Telescope (Wide Field Infrared Survey Telescope, WFIRST) is a 2.4 meter primary mirror, and the Harbert telescope of the same size, but its view than Harbert telescope 100 times, which is 100 times larger than the shooting area of the Harbert telescope, astronomers will have the opportunity to explore the universe's greatest the mysteries, such as why the expansion of the universe seems to be speeding up? At present, a possible explanation for the acceleration of expansion is dark energy driving, which accounts for 68% of the total amount of the universe, and may even have changed the history of the universe at some point in the past.

, in order to learn more about dark energy, WFIRST will use 2 powerful 2.4 meter reflector and wide field instrument to do 2 things: mapping matter's structure and distribution in the whole universe, and measuring how the universe expands over time. The mission will focus on studying galaxies within 500 million years after the big bang, to understand how the universe evolved stars, planets and life from a hot, uniform gas.


wide field instrument will also measure the material in hundreds of millions of distant galaxies, using the effects called gravitational lensing to describe the whole physical structure of the universe. Measurements will be in hundreds of days monitoring 100 million stars, NASA is expected, will find about 2500 unknown planets, which contains a large number of rocky planets; in addition, can also be found on Mars than smaller planets, and found that some planets orbit distance than Venus to Pluto closer to.

through a series of new technologies, WFIRST will provide a panoramic view of the universe, to help scientists understand the most difficult problems in astrophysics, such as how the universe evolved into today's appearance, the final destiny of the universe, and whether we are alone in the universe biological etc..

  • NASA 's Next Major Telescope to See the Big Picture of the

(first figure source: NASA) return to the Sohu, see more


From: 哈勃望远镜的兄弟 WFIRST,将拍宇宙全景图解谜暗能量
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