For the first time, astronomers have captured the brilliance of a superluminous supernova via gravitational lensing.

Two new stars, or nova eruptions, have been resolved in unprecedented detail by six optical telescopes operating in unison as ...

Astronomers are a step closer to cracking one of the secrets of dark energy—the mysterious force believed to be causing the universe's accelerated expansion.

Edwin Hubble, born November 20, 1889, made seminal observations in 1923 of the Andromeda Galaxy and a Cepheid variable, which significantly broadened the understanding of other galaxies and the ...

The six-part documentary explores the United States’ founding struggle and its eight-year War for Independence, examining how these “turned the world upside-down.” It airs nightly through Nov. 21.

Sunday’s premiere of Ken Burns’ new PBS series “The American Revolution” doubles as an attention-grabbing statement, months after President Donald Trump succeeded in stripping away all federal funding ...

Filmmaker Ken Burns has examined some of the most defining moments of American history. He's delved into the Civil War, dissected America's response to the Holocaust and chronicled the evolution of ...