Observations with NASA's Chandra X-ray Observatory have revealed a massive cloud of multimillion-degree gas in a galaxy about 60 million light years from Earth. The hot gas cloud is likely caused by a collision between a dwarf galaxy and a much larger galaxy called NGC 1232. If confirmed, this discovery would mark the first time such a collision has been detected only in X-rays, and could have implications for understanding how galaxies grow through similar collisions.
It's hard to believe the captivating and gorgeous nebula in this image was created by one tiny sun-like star that exploded. Planetary nebulas are kind of like snowflakes, they are extremely intricate and beautiful and no two are exactly alike. Scattered throughout the universe these dazzling cosmic marvels give scientist a glimpse into our own star's distant future.