Unpicking How to Measure the Complexity of Knots

Two mathematicians have proved that a straightforward question—how hard is it to untie a knot?—has a complicated answer.
Space on MSN

Hubble Constant Tension Explained - 'Measuring The Expansion Rate Of The Universe'

Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight ...

SEC once wanted its own playoff, and now it's here. Like it or not

There was a time not so long ago when they threatened to do just this. Their own playoff, their own world. And now it’s happening in the SEC. It’s just called the regular season .
CNBC

Are you eligible for the new $6,000 senior tax deduction?

The One Big Beautiful Bill Act has supersized the standard deduction for seniors. Starting with 2025 federal returns (filed in 2026), taxpayers 65 and older can claim up to $6,000 in addition to the ...

Stopgap deal signals end to shutdown but renews divisions among Democrats

The decision by eight Senate Democrats to break with the rest of the party and vote with Republicans to reopen the government ...