Final Checks Done on Major Component of Future Space Telescope
The engineering team responsible for the construction of a forthcoming space telescope has given the all-clear to one of its most crucial components. The primary mirror, with a whopping diameter of 7.9 feet, is all set to collect and focus light from celestial bodies near and far. This will enable the telescope to capture breathtaking images of the universe.
For the team that has labored on the telescope, catching a last glimpse of it before it sets forth to serve as humanity's eyes into the cosmos was a deeply moving experience. The telescope is the result of the hard work and dedication of countless individuals and organizations.
Meticulous Inspection of the Mirror
In a recent procedure, the observatory was turned on its side and the protective "hood" that will be used to shield the mirror during launch was deployed. The team then conducted a thorough visual inspection to ensure the mirror hadn't come into contact with any particles during testing and that its alignment was correct.
To carry out the inspection, a high-resolution camera with a powerful zoom lens was used. The mirror emerged triumphant from the inspection, keeping the mission on schedule for a launch in the early fall.
The team checked the optics along the path that light will take to the Wide Field Instrument detector array and confirmed that everything was properly aligned after the observatory shake test. For the telescope to accurately measure objects scattered throughout the universe, all of its components must be extremely precise, and the primary mirror certainly meets that requirement.
Unique Features of the Primary Mirror
The primary mirror of the telescope is coated with a thin layer of silver that is less than 400 nanometers thick, equivalent to around 200 times thinner than a human hair. This silver coating was specifically chosen for this telescope because of its superior ability to reflect near-infrared light. This is a departure from other well-known space telescopes which have mirrors coated with different materials to optimize reflectivity of other types of light.
The mirror's surface is so smooth that the average bump is only 1.2 nanometers tall, more than twice as smooth as the mission requirements. If we were to imagine the mirror scaled up to the size of our planet, these bumps would only be a quarter of an inch high.
The mirror is crafted from a special type of glass that has an ultra-low rate of expansion. This means that it can withstand temperature changes without warping, a crucial property considering the drastic temperature shifts it will experience when going from Earth's climate to the extreme cold of space. Without this property, the images captured by the telescope could be distorted.
The entire team is immensely proud of the state-of-the-art optical system they've created. Now that the mirror has been assembled, aligned, and polished, the team is eager to proceed with the mission.
Next Steps for the Telescope
The next step is to transport the observatory to its launch site in Florida. The team anticipates that the telescope will start delivering stunning cosmic views within several months after its launch.
The telescope project is managed by a team based in Maryland, with contributions from various organizations and research institutions across the country.
The engineering team responsible for the construction of a forthcoming space telescope has given the all-clear to one of its most crucial components. The primary mirror, with a whopping diameter of 7.9 feet, is all set to collect and focus light from celestial bodies near and far. This will enable the telescope to capture breathtaking images of the universe.
For the team that has labored on the telescope, catching a last glimpse of it before it sets forth to serve as humanity's eyes into the cosmos was a deeply moving experience. The telescope is the result of the hard work and dedication of countless individuals and organizations.
Meticulous Inspection of the Mirror
In a recent procedure, the observatory was turned on its side and the protective "hood" that will be used to shield the mirror during launch was deployed. The team then conducted a thorough visual inspection to ensure the mirror hadn't come into contact with any particles during testing and that its alignment was correct.
To carry out the inspection, a high-resolution camera with a powerful zoom lens was used. The mirror emerged triumphant from the inspection, keeping the mission on schedule for a launch in the early fall.
The team checked the optics along the path that light will take to the Wide Field Instrument detector array and confirmed that everything was properly aligned after the observatory shake test. For the telescope to accurately measure objects scattered throughout the universe, all of its components must be extremely precise, and the primary mirror certainly meets that requirement.
Unique Features of the Primary Mirror
The primary mirror of the telescope is coated with a thin layer of silver that is less than 400 nanometers thick, equivalent to around 200 times thinner than a human hair. This silver coating was specifically chosen for this telescope because of its superior ability to reflect near-infrared light. This is a departure from other well-known space telescopes which have mirrors coated with different materials to optimize reflectivity of other types of light.
The mirror's surface is so smooth that the average bump is only 1.2 nanometers tall, more than twice as smooth as the mission requirements. If we were to imagine the mirror scaled up to the size of our planet, these bumps would only be a quarter of an inch high.
The mirror is crafted from a special type of glass that has an ultra-low rate of expansion. This means that it can withstand temperature changes without warping, a crucial property considering the drastic temperature shifts it will experience when going from Earth's climate to the extreme cold of space. Without this property, the images captured by the telescope could be distorted.
The entire team is immensely proud of the state-of-the-art optical system they've created. Now that the mirror has been assembled, aligned, and polished, the team is eager to proceed with the mission.
Next Steps for the Telescope
The next step is to transport the observatory to its launch site in Florida. The team anticipates that the telescope will start delivering stunning cosmic views within several months after its launch.
The telescope project is managed by a team based in Maryland, with contributions from various organizations and research institutions across the country.