The issue of whether or not Donald Trump taped conversations with James Comey was raised several times during Comey’s dramatic testimony Thursday before the Senate Intelligence Committee, prompting the question of whether

Life expectancies for Americans have increased significantly over the past hundred years. Today, Americans can expect to live an average of 25 years longer than in generations previous, living fulfilled lives well into their late 70s.

Astronomers have observered a phenomenon known as gravitational microlensing in stars for the first time. Predicted by Einstein as part of his theory of general relativity, this could help measure the mass of distant stars using gravitational deflection.

The government of Hawaii signed two bills on Tuesday which formalizes its commitment to the goals of the Paris Climate Agreement. This comes after U.S. President Donald Trump decided to pull out of the climate deal.