A specialized observing mode aboard NASA’s James Webb Space Telescope has overcome a major technical setback. After years of ...
Sufficiently dense objects warp spacetime so that it acts like a lens. If there is a very dense object such as a black hole or large star in the foreground, whatever is shining from behind it (like a ...
Sometimes, in order to support an idea, you first have to discredit alternative, competing ideas that could take resources away from the one you care about. In the scientific community, one of the ...