2. Which action does the passage imply is best achieved with the Hubble Space Telescope given its position?
Edwin Hubble was an American astronomer who discovered that many previously described clouds of dust where in fact galaxies beyond our own, the Milky Way. Named after his legacy, the Hubble Space Telescope, also known as Hubble, is a space telescope launched into Earth’s orbit in 1990. As of 2020, it remains in operation. While it was not the first space telescope, it is one of the largest, able to observe ultraviolet, visible and near infrared regions along the electromagnetic spectrum. Given its position in orbit, it is unobstructed by the distortion of the Earth’s atmosphere lending it the ability to take high resolution images in visible light. The images and observations from the Hubble have led to various breakthroughs in astrophysics and the images are widely recognised. One such image is known as Pillars of Creation – interstellar gas and dust, in a pillar formation, found in the Eagle Nebula. They are called the Pillars of Creation due to them being in the process of creating new stars via their composition of cool molecular hydrogen gas and dust. At the same time, the Pillars are being eroded by photo evaporation from the ultraviolet light from recently formed stars nearby. The Pillars of Creation are known via a photograph taken by Jeff Hester and Paul Scowen of Arizona State University using the Hubble Telescope. Since the publication of the photograph, the image has had large cultural impact, appearing on posters to items of clothing. Given their distance from Earth, it is suggested that the Pillars of Creation are roughly 7,000 light years away and as such, have already been destroyed. If this were true and given the travel speed of light, we will not be able to witness this destruction visibly on Earth until about 1,000 years.