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Riled Up is a journal of science, the environment, exploration, new technology, and related commentary.  Contributors include scientists, explorers, engineers, and others who provide perspectives and context not typically offered in general news circulation.  For interested readers, additional resources are included.

The Conservation Alliance

Andromeda Visualized
Hugh Bollinger

Andromeda Visualized

Andromeda galaxy in UV light (credit: JPL/NASA)

The Milky Way's galactic next door neighbor, 2.5 million light years distant, Andromeda. An image of the spiral galaxy was created by NASA's Jet Propulsion Laboratory using ultraviolet (UV) and optical light data. The resulting visualization shows intense star formation with Andromeda's rings appearing to show that the giant galaxy had previously collided with a smaller star cluster more than 200 million years ago. Andromeda became one massive, spiral galaxy in the process. The Milky Way and Andromeda are racing towards each other and will combine in the distant future. That outcome was confirmed using measurements made by the Hubble space telescope which tracked the movements of stars in Andromeda. Another new, and even more massive, galaxy will result to become Milkomeda 4 billion years from now. Galaxies are largely empty space so collisions of stars will be rare. The resulting night sky will be remarkable from any perspective if anyone is still around to observe the new heavenly arrangements. WHB

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