MNN Galleries

NASA photos: The Hubble is back

Hubble Space Telescope: Stephan's Quintet

Photo: NASA, ESA, Hubble SM4 ERO Team

4 of 10

Stephan's Quintet

Located about 300 million light-years away, only four of the five in this galaxy group, Stephan's Quintet, are actually in close proximity of colliding with each other. The bluish one on the upper left is actually about seven times closer to Earth than the other four.