NASA just discovered a massive tsunami of gas in space

Some of the coolest discoveries made by NASA — like the personality of Martian soil, for instance — are often so small in scale that it's easy to forget just how big many things in space really are. A new discovery made by researchers working with data from NASA's Chandra X-ray Observatory helps put things in perspective. The group just reported its findings of an absolutely colossal "tsunami" of hot gas cruising through the nearby Perseus Galaxy Cluster, and it's so big that the wav