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Joachim Stadel / UZH

Astrophysicists from the University of Zurich in Switzerland have built the largest simulation of the universe yet. The simulation, which was described in Computational Astrophysics and Cosmology, enables scientists to see how dark matter interacts with the universe. The photo above is part of the simulation, which highlights the dark matter halos in yellow — the dark matter that hypothetically surrounds galaxies.

How big? The simulation models more than 25 billion virtual galaxies.

Why it matters: The simulation will serve as a calibrator to help the Euclid satellite gather information from the universe. The simulation with help frame what Euclid will look for in its investigation into dark matter and dark energy. The satellite is set to launch in 2020.

How to see dark matter: Scientists believe dark matter and dark energy constitute 95% of our universe — the other 5% is what we can see, but this dark matter has remained mostly a mystery. Euclid won't be able to literally see the dark matter, but it will be looking for changes in the light as it travels the Universe. The astrophysicists' simulation predicts how dark matter and dark energy operate, which helps frame the kind of dark matter effects Euclid should be looking for and measuring.

Go deeper: Read the press release with details on how the simulation was built and Euclid's goals, here.

Go deeper

30 mins ago - Politics & Policy

Scoop: Biden plan expected to include at least $500B for climate

Photo: Stephanie Keith/Bloomberg via Getty Images

The White House is privately telling lawmakers the climate portion of President Biden's roughly $2 trillion social spending plan is "mostly settled" and will likely cost more than $500 billion, two sources familiar with the talks tell Axios.

Why it matters: A pricetag of $500-555 billion is a huge number and, if it holds, would likely be the single biggest component of the sweeping package. It also isn't far off from the roughly $600 billion proposed when the bill was expected to cost $3.5 trillion.

37 mins ago - World

U.S. presses Gulf countries to help resolve Sudan coup crisis

Jake Sullivan briefs the press. Photo: Chip Somodevilla/Getty

The Biden administration has asked its partners in the Gulf and elsewhere to press the Sudanese generals who carried out a coup on Monday to release captives including Prime Minister Abdallah Hamdok and to reinstate the civilian government, White House National Security Adviser Jake Sullivan said in a press briefing on Tuesday.

Why it matters: The U.S. has limited influence over coup leader Gen. Abdul Fattah al-Burhan and other military leaders, many of whom have close ties to Saudi Arabia and the United Arab Emirates.

Higher prices are the new norm, with no end in sight

Illustration: Aïda Amer/Axios

Companies are making money at record rates thanks in part to customers who are willing to pay higher prices.

Why it matters: In order to keeping that corporate profitability streak going, shoppers should expect sticker prices to stay high or become more expensive well into 2022. Fewer promotions and shallower discounts will also become the norm as inventory levels remain low.