The nearby universe is not filled with galaxies evenly. Matter forms clusters, sheets and filaments around regions containing ...

Composing some 85% of the universe's total mass, dark matter betrays its presence only through gravity, unlike ordinary ...

Where starlight doesn't reach, new things are born: For the first time, an international research team has directly measured the effect of cosmic radiation in a cold molecular cloud. The observation ...

For decades, astronomers were certain that half of the ordinary matter in the universe — protons and neutrons, the building blocks of everything we see — had simply gone unaccounted for. The cosmic ...

Scientists from the Leibniz Institute for Astrophysics Potsdam (AIP) have discovered a new plasma instability that promises to revolutionize our understanding of the origin of cosmic rays and their ...

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Scientists have traced a 3,000-light-year-long cosmic jet streaming out from the first black hole ever imaged to its likely source point with the help of "significantly enhanced coverage" from the ...

Like rivers feeding oceans, streams of gas nourish galaxies throughout the cosmos. But these streams, which make up a part of the so-called cosmic web, are very faint and hard to see. While ...

IMAGE: Astronomers have tracked down a gigantic, previously unknown assembly of galaxies located almost seven billion light-years away from us. “Matter is not distributed uniformly in the Universe,” ...