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the Science

~ four main areas we study ~

Relativity

Einstein's Version of the Laws of Physics

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Relativity

Compact
Objects

The End Points of Stellar Evolution

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Compact Objects

Gravitational
Waves

Ripples in the Fabric of Spacetime

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Gravitational Waves

Numerical
Relativity

Giving the Problem to a Computer

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Numerical Relativity

Active Research

Probing perturbative scattering with SpEC

Created on November 14, 2025

How much information can we gain by pushing numerical relativity to its limit by simulating black hole scattering encounters when one is much larger than the other or when they are far apart and only weakly interacting? Our latest preprint (led by Oliver Long) explores these extreme regions of the black-hole scattering parameter space using simulations generated using the Spectral Einstein Code (SpEC).

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Binary black hole scattering with SpEC

Created on July 14, 2025

What happens when high-velocity black holes hurtle past each other in a close encounter, deflecting through spacetime but never merging? Our latest preprint (led by Oliver Long) presents the first simulations of black-hole scattering generated using the Spectral Einstein Code (SpEC).

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Explore the Science of SXS

Come, you lost Atoms, to your Centre draw,
And be the Eternal Mirror that you saw:
Rays that have wander'd into Darkness wide,
Return and back into your Sun subside.

From Farid al-Din Attar's twelfth-century masterpiece
The Conference of the Birds