1/2/2024 0 Comments Huble telescope for kids![]() It sees with the help of four CCD chips arranged in an "L" shape to catch the light - three low-resolution, wide-field CCD chips, plus one high-resolution planetary camera CCD chip. The Wide Field and Planetary Camera 2 ( WFPC2) is Hubble's main "eye," or camera. Let's look at how each instrument contributes to those images. ![]() The digital data are then transformed into amazing photos. The light detected by the CCDs are turned into digital signals, which are stored in onboard computers and relayed to Earth. Each instrument uses charge-coupled devices ( CCDs ) rather than photographic film to capture the light. To do this, HST is equipped with several scientific instruments. COSTAR consisted of several small mirrors that would intercept the beam from the flawed mirror, fix the defect and relay the corrected beam to the scientific instruments at the focus of the mirror.īy looking at the different wavelengths, or the spectrum of light, of a celestial object, you can discern many of its properties. Scientists came up with a replacement "contact" lens called COSTAR ( Corrective Optics Space Telescope Axial Replacement) to repair the defect in the HST. Surely the astronomers didn't spend years working on the telescope only to be satisfied with unremarkable snapshots of outer space. Although the defect in the mirror - roughly equal to one-fiftieth the thickness of a human hair - would seem ridiculously minute to most of us, it caused the Hubble Space Telescope to suffer spherical aberration and produce fuzzy images. They realized that the telescope's primary mirror had been ground to the wrong dimension. Their new tractor-trailer-sized eye in the sky couldn't focus properly. We'll also talk about a few of the problems the venerable telescope/spacecraft has encountered along the way.Īlmost immediately after it was deployed in 1990, astronomers discovered a problem with their beloved $1.5 billion, 43.5-ft (13.3-m) telescope. In this article, we'll talk about how Hubble has documented outer space and the instruments that have allowed it to do so. Since its launch, Hubble has reshaped our view of space, with scientists writing thousands of papers based on the telescope's clear-eyed findings on important stuff like the age of the universe, gigantic black holes or what stars look like in the throes of death. astronomer Edwin Hubble, whose observations of variable stars in distant galaxies confirmed that the universe was expanding and gave support to the Big Bang theory.Īfter a long delay due to the Challenger disaster in 1986, the Hubble Space Telescope shot into orbit on April 24, 1990, piggybacking aboard the Discovery space shuttle. The famous telescope was named after U.S. NASA named Lockheed Missiles (now Lockheed Martin) as the contractor that would build the telescope and its supporting systems, as well as assemble and test it. ![]() ![]() In 1975, the European Space Agency (ESA) and NASA began drafting the initial plans for it, and in 1977, Congress approved the necessary funds. space program matured in the 1960s and 1970s, Spitzer lobbied NASA and Congress to develop a space telescope. ![]()
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