SpaceDoes a halo of mysterious dark matter swirl around every galaxy? Many galaxies seem to have bubbles of dark matter enveloping them, but finding out if every galaxy is like this is an ongoing area of research, writes Chanda Prescod-WeinsteinComment
SpaceWe still don't understand a basic fact about the universe Our measurements of the Hubble constant can't seem to come up with a consistent answer. What we learn next may alter our view of the cosmos, writes Chanda Prescod-WeinsteinComment