Here is our red neighbor, Mars, spinning on its axis in a stunning animation created from images captured by the Hubble Space Telescope.The planet’s bright northern polar cap stands out clearly, formed by water ice and frozen carbon dioxide. Dark regions such as Syrtis Major create a striking contrast against the surrounding terrain, while Mars’ iconic reddish-orange color — caused by iron oxide — blankets most of its surface.

Answer the following question briefly: Hubble telescope employs a large parabolic mirror as an objective. State any one advantage of using a mirror in place of a lens in such a telescope. | Shaalaa.com

Event Horizon Telescope