During a lunar eclipse, the Moon can appear red. This happens because the Earth blocks the sunlight from directly reaching the Moon, but some sunlight still gets through our atmosphere. When this sunlight passes through Earth's atmosphere, it scatters, and the red light bends around the Earth and onto the Moon. The more dust or clouds there are in our atmosphere during the eclipse, the redder the Moon looks. It's like the Moon is being painted with all the beautiful colors we see during sunrises and sunsets.