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How This 'Preposterous But Real' Photo of a Skydiver in Front of the Sun Was Taken

ExplorersWeb's resident astrophysicist analyzes how a solar photographer set up and took an astonishing shot of a skydiver ...

Congress Passes IRS Math And Taxpayer Help Act – What It Means For Your Tax Mistakes

"No one should have to spend a fortune on a lawyer or hours trying to figure out what went wrong on their taxes when the IRS ...
Scientific American

How to Identify a Prime Number without a Computer

For years, a French mathematician searched for a proof that a gigantic number is prime. His method is still used 150 years ...