1 Expand the Remove unwanted characters section by clicking on the arrows next to the second tab on the Cell Cleaner pane in Excel. 2  To remove characters select the range with the cells that contain values you want to delete.3  Choose the option that suits your task.4  You can select one of these five options: Expand the Remove unwanted characters section by clicking on the arrows next to the second tab on the Cell Cleaner pane in Excel. 2  To remove characters select the range with the cells that contain values you want to delete. 3  Choose the option that suits your task. 4  You can select one of these five options:
Andreas Cellarius's illustration of the Copernican system, from the Harmonia Macrocosmica (1708). Heliocentrism, or heliocentricism, is the astronomical model in which the Earth and planets revolve around the Sun at the center of the Solar System. The word comes from the Greek (á¼¥Î»Î¹Î¿Ï helios sun and ÎºÎ­Î½ÏÏÎ¿Î½ kentron center).
Known for: Heliocentric model of the universe. Renaissance astronomer who theorized that the sun was the center of the universe rather than the earth. He also stated that the moon revolved around the earthâs orbit rather than the sunâs.