We're looking edge-on at our galaxy's central disk. Although NASA calls NGC 6744 the galaxy most similar to ours in the local universe, the agency also calls it our "big brother." It's 175,000 ...

If we could see our own galaxy in its entirety, as we see NGC 6744, a twin galaxy 30 million light years away, measuring the Milky Way’s mass would be easy. But we see it from our place in one ...

The European Space Agency revealed five new photos from the Euclid space telescope. See the images of deep space.