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Astronomy and Astrophysics
Mysterious, dust-filled galaxy seems very mature for its age
Mysterious, dust-filled galaxy seems very mature for its age

Looking deep into the universe's past, astronomers have discovered a galaxy that’s surprisingly mature for its age. The star-forming galaxy A1689-zD1, described in the journal Nature, reveals that dust – the stuff we’re made of – might have been able to accumulate much earlier than once thought. Scientists study extremely distant celestial objects because it’s a way to look back in time. For example, if you were to take a picture of the sun right now, that snapshot would actually show the sun as it was eight minutes ago, because it took that sunlight eight minutes to reach your camera on Earth. The same principle applies for a galaxy that is billions upon...

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