Nathaniel Butler / ASU

When stars die and collapse to form black holes, a powerful explosion — second only to the Big Bang itself — occurs. These gamma-ray bursts take place billions of light years away. Across space and therefore time, they're a window into the early universe that opens for just a few milliseconds to a minute. By the time a telescope is turned, they're typically gone.

Last year though, researchers were able to observe an unusually bright one — GRB 160625B, pictured above— using six telescopes on the ground and in space. They caught it early to enough to measure strong changes in the polarized light of the burst for the first time. "That, in turn, tells us that the release of magnetic energy is an important ingredient in these exotic explosions," says Arizona State University's Nathaniel Butler.

A new picture: Spiraling electrons cause radiation that powers magnetic jets in the first moments of the explosion. The magnetic fields then break down and are largely replaced by matter from the dying star that falls into the black hole and is ejected again. Researchers have known about these two processes but thought only one was responsible. Now, it seems it could be both.

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House will not hold votes until Sept. 14 unless stimulus deal is reached

Photo: Mandel Ngan/AFP via Getty Images

House Majority Leader Steny Hoyer (D-Md.0 announced Monday that the House will not hold any floor votes until Sept. 14, though members will remain on 24-hour notice to return to Washington in case a deal on coronavirus stimulus is reached.

Why it matters: Democrats and the Trump administration remain deadlocked and have not met since negotiations broke down without a deal on Friday.

Updated 27 mins ago - Politics & Policy

Coronavirus dashboard

Illustration: Annelise Capossela/Axios

  1. Global: Total confirmed cases as of 3 p.m. ET: 19,936,547 — Total deaths: 732,467 — Total recoveries — 12,144,510Map.
  2. U.S.: Total confirmed cases as of 3 p.m. ET: 5,063,770 — Total deaths: 163,156 — Total recoveries: 1,656,864 — Total tests: 61,792,571Map.
  3. Business: Richer Americans are more comfortable eating out.
  4. Public health: How America can do smarter testing.
  5. Sports: The cost of kids losing gym class — College football is on the brink.
  6. World: Europe's CDC recommends new restrictions amid "true resurgence in cases."

Trump says he'll accept nomination at White House or Gettysburg

Trump at the 2016 Republican National Convention. Photo: Bill Clark/CQ Roll Call via Getty Images

President Trump tweeted Monday that he'll deliver his speech accepting the Republican nomination for president at either the Gettysburg battlefield in Pennsylvania or at the White House.

The state of play: Republican National Convention planners are looking for a new venue for the president to deliver his acceptance speech after convention events were canceled in Jacksonville, Fla., due to coronavirus concerns.