CC0 Usage Conditions ApplyClick for more information. NASA’s Chandra X-ray Observatory found two pairs of merging ‘dwarf’ galaxies. These are galaxies about 20 or more times less massive than our ...

The Super Bowl MVP (Most Valuable Player) award is given to the player who has the most significant impact on the game’s ...

Andrew J. Martin does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...