Before his time as Leonard Hofstadter in "The Big Bang Theory," Johnny Galecki had a disappointingly small role in this 2008 ...

While Johnny Galecki enjoyed working with Tom Cruise on "Vanilla Sky," his experience with writer-director Cameron Crowe was ...

As Sheldon Cooper, Jim Parsons was the breakout star of "The Big Bang Theory" during its phenomenal 12-season run. What's he ...

Knotted structures once imagined by Lord Kelvin may actually have shaped the universe’s earliest moments, according to new ...

No one does a running gag quite like The Big Bang Theory. From "Soft Kitty" to Penny's check engine light, the series had ...

Using the James Webb Space Telescope, a team of international researchers have discovered chemical fingerprints of gigantic ...

NASA’s James Webb Telescope may have detected the universe’s first stars, Pop III stars, in galaxy LAP1-B, offering a glimpse into cosmic history.

A provocative theory is gaining new support today. Scientists suggest atom-sized black holes may move through Earth. These ...

Netflix just bought Warner Bros. Discovery for more than $80 billion — but how will that acquisition change streaming for ...

In 1867, Lord Kelvin pictured atoms as tiny knots in an invisible medium called the ether. That picture turned out to be wrong, since atoms are built ...

Three thought experiments involving “demons” have haunted physics for centuries. What should we make of them today?