![]() ![]() The final space shuttle mission to Hubble, STS-125, removed COSTAR and installed the new instruments. The telescope needs at least three working gyros in order to operate, so the failure put Hubble out of commission until December 1999, when the crew of STS-103 arrived with new gyros just in time for Christmas.īy 2009, new science instruments had been designed with corrective optics built in. Hubble had another close call in November 1999, when the fourth of its six stabilizing gyros failed. Because the universe is expanding, and the Doppler effect shifts light toward the red end of the spectrum as objects move away from us, seeing in near infrared means Hubble can look at some of the most distant – and therefore oldest, because of the time it takes light to reach Earth – objects in the universe. ![]() In 1997, the crew of STS-82 installed new instruments that would allow Hubble to make observations of objects in the near infrared spectrum. This is what Hubble images of galaxy M100 looked like before (left) and after (right) COSTAR. An updated version of WFPC also helped compensate for the blur. The contraption, called the Corrective Optics Space Telescope Axial Replacement, or COSTAR, took NASA three years to build and the crew of STS-61 35 hours of spacewalks to install in December 1993. But Hubble’s glasses were much more complicated, using five pairs of adjustable mirrors to help refocus the light from Hubble’s primary mirror before it reached the telescope’s science instruments. It turns out that the solution for a nearsighted telescope is the same as the solution for a nearsighted person: wear corrective lenses. The error had been made in 1981, and in all that time, no one had noticed until it was too late. Thanks to the spacing error, the curves of the mirror’s edges were a few micrometers flatter than they should have been –less than the width of a hair, but just enough to blur the light of distant galaxies. The primary mirror was supposed to gather distant light and focus it into including WFPC-1 and a spectrometer. In Hubble’s case, it took a 1.3 mm spacing error in the instrument responsible for guiding the final, fine grinding of Hubble’s 2.4 m primary mirror. It takes very little to doom a space mission. Color-coded steps and clear images of each step in the build process make it easy for even less experienced LEGO builders to complete the build.Hubble leaves the cargo bay of space shuttle Discovery, 1990. The instructions for the set are clear, easy to follow, and visually appealing. The sturdy box protects the set during transportation. The LEGO NASA Space Shuttle Discovery set has a well-designed box, showcasing a beautiful image of the completed model, along with images of the Hubble Space Telescope and minifigures included in the set. But does it live up to the hype? In this article, we’ll take a closer look at the box, instructions, build techniques, overall design, and final product to help you decide if the LEGO NASA Space Shuttle Discovery set is worth adding to your collection. With 2,354 pieces and a price point of £169.99 / 199,99 € / $199.99 US / $269.99 CAD, this set is a significant investment for LEGO fans and space enthusiasts alike. The LEGO NASA Space Shuttle Discovery set is a highly detailed and impressive addition to the LEGO lineup, featuring an accurate representation of the iconic space shuttle and the Hubble Space Telescope. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |