Gravitational

The NANOGrav team was essentially able to turn the Milky Way into a giant gravitational wave detector by measuring the signals from these pulsars to determine when a wave nudged them. The collision of enormous black holes—or some other…

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Credit: NASA’s Goddard Space Flight Center/CI LabImagine taking a star with twice the mass of the Sun and crushing it down to the size of Manhattan. The result would be a neutron star—one of the densest objects found anywhere in the…

A Milky-Way-like galaxy simulated by the supercomputer ATERUI II. Stars are clustered in a bar shape near the center of the galaxy. Credit: Junichi Baba, Hirotaka…

Here’s something I’ve wondered about from time to time but never had an answer for: Why don’t we see two exoplanets sharing the same orbit? Objects like this are called co-orbital, and we know they can exist for two…

It sounds like the setup for a joke: If radio waves give you radar and sound gives you sonar, what do gravitational waves get you? The answer might be “GRADAR” — gravitational wave “radar” — a potential future technology…

Animation illustrating gravitational waves. Gravitational-waves are ripples in space-time created by distant astronomical objects and detected by large complex detectors (like LIGO, Virgo, and KAGRA). Finding gravitational-wave signals…

A new method of identifying gravitational wave signals using <span class="glossaryLink" aria-describedby="tt" data-cmtooltip="quantum computingPerforming computation using quantum-mechanical phenomena such…

Credit: CC0 Public Domain A new method of identifying gravitational wave signals using quantum computing could provide a valuable new tool…

Credit: Roshni Samuel / Parameswaran Ajith / ICTS. The existence of dark matter remains one of the greatest mysteries of the universe.…