Astronomers have revealed the sharpest image ever captured of a filament in the cosmic web — the enormous hidden structure connecting galaxies across the Universe. The glowing strand stretches 3 million light-years and links two galaxies from nearly 12 billion years ago. By observing this faint in tergalactic gas directly for the first time in such detail, scientists gained new insight into how galaxies are fueled and formed. ...read more read less