Transformative discoveries in cosmology are unfolding at Princeton as researchers explore the universe’s large-scale structure, including galaxies, dark matter, and dark energy. Professor of ...

"If we see the lampshade effect in action, it will tell us about what dark matter could be, which is exciting." Dark matter clumps could act as stellar lampshades, drifting between Earth and distant ...

Dark matter makes up most of the universe, yet no one really knows what it is. It doesn’t emit light, can’t be seen directly, and doesn’t behave like anything we fully understand. Scientists know it’s ...

Decades ago, astronomers estimated that “ordinary” matter (basically everything that isn’t dark matter or dark energy) makes up 5% of the universe. There was just one problem—they had no idea where ...

As the Vera C. Rubin Observatory surveys the night sky, astrophysicists expect to unlock the secrets of dark matter, dark energy and cosmic phenomena that go “bang!” The telescope mount assembly ...

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New Scientist (subscription required): Stacy McGaugh, chair and professor of astronomy, discussed the extensive measures undertaken to pursue the mysteries of dark matter that doesn’t reflect, emit or ...

Dark matter clumps could act as stellar lampshades, drifting between Earth and distant stars, dimming them by an almost imperceptible amount, a new study suggests. If this idea is correct, such "dark ...