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First Generation Space Telescopes Unable to Build Earth



  Some Assembly Required: The First Generation of the First Generation of Space Telescope was not possible

Hubble Space Telescope visited the space launchers during five space shuttle missions between 1993 and 2009. Here, two spatial spasters work on Hubble served during the first Mission, when the telescope mirror was set and a new camera was installed.

Credit: NASA

When it comes to telescopes, size materials.

In order to learn new things about the globe, astronomers are constantly adding more and better observations to watch the cosmos from the Earth and from the orbit. Engineers have started the technology needed to build the next generation of modern space telescopes, but there is no problem: These observations may be too large to enter space.

Both sides in terms of size and weights, the telescopes are planned by astronomers and engineers to rapidly progress the capabilities of today's rockets. This is because telescope abilities depend significantly on their grooves, or in the diameter of its main mirrors. New "megarockets" such as NASA Space Launch System can be great enough for the new generation space telescopes that NASA aims to launch in the 2030s, but if those missions have to be released In the same rocket balance, these missions may sacrifice some scientific potential. [Giant Space Telescopes of the Future (Infographic)]

Except for a telescope design to be restrained inside the balance of payload on the largest available rocket ̵

1; and thus limit the amount of science it can return these instruments – NASA scientists are working to find new ways to get those that get space telescopes into the orbit: by starting a piece by turning them into space, robotically or with astronauts .

"Large telescopes give you a better crew solution and a better spectrum solution, so more telescopes should be needed in the future," said Nick Siegler, NASA Exoplanet Exploration Key Scientist, said Presented at the 23rd meeting of the American Astronomical Society in Seattle in January. That higher resolution will allow you to see more telescopes on the globe, looking more deeper than ever before. It will also be very useful in identifying and identifying plans for other stars.

"Of course, it's great, relative, but the challenge is progressing the same," Siegler said. "You have large structures that you want to go into smaller structures, and the amount of work that goes really big." For example, the James Webb NASA (JWST) Space Telescope – which is currently scheduled will launch a heavy-lifting rocket Ariane 5 in 2021 – returning to an inside fitting of rocket load balancing. When the telescope is ready to use, more than 200 moving papers must be carefully discouraged before the instrument can work to watch the sky.

JWST is the largest ever launched space telescope, with its 6.5-meter mirror (21.3 feet). The Ariane 5 was launched a JWST heavy-lift rocket that is usually used to send satellites into the Earth orbit. However, these rockets were used to launch interactive missions such as the BepiColombo mission of the European Space Agency to Mercury launched last October. Although the JWST is not being launched, NASA scientists are already working on proposals for their successors. (Trailer Alerts: They are more than JWST!)

  A diagram is compared to the relative amounts of the original Space Telescope mission concept and space space telescopes. The diagram also shows the temperatures at which the different telescopes must operate.

A diagram compares the relative amounts of the original Space Telescope mission concept and current space telescopes. The diagram also shows the temperatures at which the different telescopes must operate.

Credit: NASA GSFC

NASA Engineers working on the blueboard for planned space observations such as the Infrared UV Optical Water Surveyor (LUVOIR) and the Space Initiative Telescope (OST) already tackle rocket borders Today. For each of these two telescopes, the engineers have had two different options: a 15-m (50-foot) version that can be launched on NASA's Spatial Address System (SLS) and a 8 m version ( 26 feet) that smaller and more powerful heavy-lift rockets can be launched today. These smaller versions are NASA backup plans where the SLS is not ready for time; The megarocket has already been widespread and too expensive.

Instead of waiting for someone to build a rocket to support the types of space telescope expected by scientists in the future, a team of NASA researchers are studying the possibilities of assembly in space. This process would not impede the obstacles related to rocket size but could reduce the cost of developing and launching new space telescopes. He reported on the study "Combined Space Telescope" (ISAT).

The beginning is to build a telescope in space. To make an in-space telescope assembly, NASA will need to prove that the process is only one, but also cost-effective and too risky. These factors depend mainly on whether the astronauts, robots or combination of the two, the assembly, explained by the members of the iSAT team at the AAS meeting.

It is not a new concept to launch astronauts to operate on a space telescope; The five-hour astronauts made use of the NASA Hubble Spatial Space Telescope, launched in 1990, in five times between 1993 and 2009. Although the Hubble astronauts do not first start installing some new equipment and some major repairs have been done on the observatory . Other space astronauts did not visit other space telescopes from the Hubble delivery model mission.

While the space flights to Hubble servicing missions were retired from 2011, NASA could send astronauts from the Lunar Orbital Platform Gateway. The station would be a lunar space planned as a rolling stone for your mission to Mars.

But some researchers, like Siegler, are thinking of having better robots to build things in space. "Astronomers are expensive," he said. "We think we can do this completely robotic." Operating a robotic system for many in-space telescope construction like the robotic army at the International Space Station, he said.

This summer, the iSAT team aims to publish the latest results of its study on various options in -space assembly.

Email Hanneke Weitering at hweitering@space.com or follow @hannekescience . Follow us on Twitter @Spacedotcom and on Facebook. Original article on Space.com.


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