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University of Cambridge

Astronomers have discovered the smallest star ever measured. It's called EBLM J0555-57Ab, it's 600 light years away, and it's about the size of Saturn. The newly discovered star is smaller than TRAPPIST-1 — a dwarf star that is known to have seven Earth-like planets in its orbit.

Why it matters:

The systems around small, ultracool stars like these are ideal targets in the search for habitable planets but they are smaller and dimmer than stars like the Sun, making them harder to find.

Go deeper

Georgia governor declines Trump's request to help overturn election result

Georgia Gov. Brian Kemp. Photo: Elijah Nouvelage/Getty Images

Georgia Gov. Brian Kemp pushed back on Saturday after President Trump pressed him to help overturn the state's election results.

Driving the news: Trump asked the Republican governor over the phone Saturday to call a special legislative session aimed at overturning the presidential election results in Georgia, per the Washington Post. Kemp refused.

Philanthropy Deep Dive

Illustration: Aïda Amer/Axios

A look at how philanthropy is evolving (and why Dolly Parton deserves a Medal of Freedom).

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