We measure the “warmness” of the dark matter, i.e. the comoving root-mean-square thermal velocity v hrms (1) , with nearly 3000 spiral galaxy rotation curves in the ...

The proof, known to be so hard that a mathematician once offered 10 martinis to whoever could figure it out, uses number ...

For centuries, humans have assumed that our thinking errors set us apart from the rest of the animal kingdom. From misjudging ...

President Donald Trump’s approval rating hit a new low point for his second term in the latest survey released Wednesday—hours after he claimed he has the “highest numbers I ever had.” President ...

U.S. trade with China has grown enormously in recent decades and is crucial for both countries. Today, China is one of the largest export markets for U.S. goods and services (second to Mexico), and ...