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Scientists discover smallest galaxy ever seen: 'It's like having a perfectly functional human being that's the size of a grain of rice'

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Andromeda XXXV is the smallest and faintest galaxy ever seen.

It is located roughly 3 million light-years away and could change how we think about cosmic evolution.

Dwarf galaxies this small should have been destroyed in the hotter and denser conditions of the early universe.

Yet somehow, somehow, this tiny galaxy survived without being fried.

"These are fully functional galaxies, but they're about a millionth of the size of the Milky Way," team member Eric Bell said.

The team's research was published March 11 in The Astrophysical Journal Letters .

NASA and other space agencies are planning missions that could help solve this mystery.

There's a good chance that the solution will open up new questions just as Andromeda XXXV has.

"We still have a lot to discover," Arias said.