The August 21, 2017 solar eclipse was visible as a total eclipse only over the continental United States, but and around the world people observed the event in many different ways. Millions of Americans turned out to see it, including enormous crowds jammed into its narrow path of totality.

US President Donald Trump today delivered a fierce ultimatum to North Korea: if Kim Jong Un makes any more threats against the United States, he will face "fire and fury like the world has never seen." The warning came after the White House received an intelligence briefing suggesting with a high degree of credibility that North Korea has developed or is developing a miniaturized nuclear weapon that could be placed on a missile capable of reaching the US. It was further stated that it is not believed that the weapon has been tested.

The degree of credibility of the report is unknown.

As President Trump moved to unwind Obama-era regulations designed to bring the US into compliance with the Paris Climate Accord, ExxonMobil, long a climate change denier, urged him not to abandon the climate accord. The company sent a letter to Trump’s top energy policy aid describing the agreement as "an effective framework for addressing the risks of climate change." Johnson & Johnson, Nike and Intel have also, among many others, signed a statement in support of the Paris agreement. When campaigning, Trump promised that the Paris agreement would be "cancelled" within a hundre days. He has describe global warming science as a plot created by the Chinese in order to render US manufacturing non-competitive.