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Aiming exascale at black holes

In 1783, John Michell worked as a rector in northern England, but his scientific work proposed that the mass of… Read More

March 20, 2024

Cosmic coding

Two new Department of Energy-sponsored telescopes, the Dark Energy Spectroscopic Instrument (DESI) and the Vera C. Rubin Observatory, will map… Read More

March 21, 2023

ExaStar power

A computational model of an exploding star – a supernova – is the “quintessential multi-physics simulation,” says a team designing codes… Read More

December 15, 2021

Dishing up the early universe

When it comes to observing exploding stars, evolving galaxies and other celestial mysteries, combining the planet’s largest radio telescope with… Read More

April 1, 2021

Supernova plunge

Behemoth exploding stars we know as supernovae are among the wildest cosmic events astronomers witness from Earth. They are powerful… Read More

July 14, 2020

Astronomical magnetism

It’s easy to take the Earth’s magnetic field for granted. It’s always on the job, shielding our life-giving atmosphere from… Read More

December 5, 2018

Galactic-wind whisperers

Winds made of gas particles swirl around galaxies at hundreds of kilometers per second. Astronomers suspect the gusts are stirred… Read More

July 25, 2018

Balancing the load

Simulating complex systems on supercomputers requires that scientists get hundreds of thousands, even millions of processor cores working together in… Read More

May 1, 2018

A Spark in the dark

Most of the universe is dark, with dark matter and dark energy comprising more than 95 percent of its mass-energy.… Read More

October 25, 2017

Dramatic flares

In July 2012, a powerful solar storm almost struck Earth. Scientists estimate that had the storm, called a coronal mass… Read More

September 27, 2017