Tags » Background Knowledge
This is my first year teaching English, and I have found that one really difficult skill to teach is summarizing. My students nod and say that they understand, but when it comes down to it, they struggle (and come up with some crazy ideas, way out of left field!). 422 more words
This is the second in a series of posts introducing and providing essential facts about each of the Frontier Fields.
Einstein’s theory of general relativity tells us how the curvature of space causes the path of light from a more distant galaxy to bend as the light passes near a massive cluster of galaxies. 500 more words