Because we haven't found anything yet, we've started to wonder if dark matter might be lighter or heavier than we thought.
Hubble revealed a universe of galaxies that existed beyond ours — but he couldn't have done it without a little help.
There's a significant imbalance between matter and antimatter in our universe, but a strange particle called "the Majoron" ...
Learn about the thermal light echo, observed by NASA, that causes intricate layers of interstellar gas and dust to emit an ...
We’ll start our survey with the classic scenario, what you might call the default. It’s the future predicted to come about if everything we know about the Universe is largely correct and all ...
New research confirms the Universe is expanding faster than theoretical models predict, intensifying the Hubble tension.