Scientists have detected a signal from what may be the universe’s first stars, which started shining about 180 million years after the Big Bang, reports Space.com. The signal was so strong, scientists think it may have been caused by early star material interacting with dark matter.

Why it matters: "It’s quite possible that this is worth two Nobel Prizes,” if the interpretation is correct, theoretical astrophysicist Avi Loeb of Harvard University told Science News. One prize for finding cosmic dawn, and another because of the implications for understanding dark matter.

Prior to the revelation, the oldest stars ever seen date to about 400 million years after the Big Bang. Judd Bowman, the lead author of the study and an astronomer at Arizona State University's School of Earth and Space Exploration, told Space.com that the detected signals will allow scientists to better understand about when and how stars were formed in the earlier times.

Yes, but: "[F]or the discovery to be rock-solid, another research group needs to spot the signal as well," writes Space.com's Mike Wall.

Go deeper

Updated 4 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Global: Total confirmed cases as of 10 p.m. EST: 32,135,220 — Total deaths: 981,660 — Total recoveries: 22,149,441Map.
  2. U.S.: Total confirmed cases as of 10 p.m EST: 6,975,980 — Total deaths: 202,738 — Total recoveries: 2,710,183 — Total tests: 98,481,026Map.
  3. Politics: House Democrats prepare new $2.4 trillion coronavirus relief package.
  4. Health: Cases are surging again in 22 states — New York will conduct its own review of coronavirus vaccine.
  5. Business: America is closing out its strongest quarter of economic growth.
  6. Technology: 2020 tech solutions may be sapping our resolve to beat the pandemic.
  7. Sports: Pac-12 will play this fall despite ongoing pandemic — Here's what college basketball will look like this season.
  8. Science: Global coronavirus vaccine initiative launches without U.S. or China — During COVID-19 shutdown, a common sparrow changed its song.
7 hours ago - Sports

Pac-12 will play football this fall, reversing course

A view of Levi's Stadium during the 2019 Pac-12 Championship football game. Photo: Alika Jenner/Getty Images

The Pac-12, which includes universities in Arizona, California, Colorado, Oregon, Utah and Washington state, will play football starting Nov. 6, reversing its earlier decision to postpone the season because of the coronavirus pandemic.

Why it matters: The conference's about-face follows a similar move by the Big Ten last week and comes as President Trump has publicly pressured sports to resume despite the ongoing pandemic. The Pac-12 will play a seven-game conference football season, according to ESPN.

Dave Lawler, author of World
7 hours ago - World

Global coronavirus vaccine initiative launches without U.S. or China

Data: Gavi, The Vaccine Alliance; Map: Naema Ahmed/Axios

A global initiative to ensure equitable distribution of coronavirus vaccines now includes most of the world — but not the U.S., China or Russia.

Why it matters: Assuming one or more vaccines ultimately gain approval, there will be a period of months or even years in which supply lags far behind global demand. The COVAX initiative is an attempt to ensure doses go where they're most needed, rather than simply to countries that can produce or buy them at scale.

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