With 12 seasons and 279 episodes to choose from, The Big Bang Theory star Johnny Galecki's five favorites are some of his ...

"What If is an epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a ...

For a lucky few, writing music for a theme song can rake in millions of dollars and be, as one songwriter puts it, "the gift that keeps on giving." ...

“He was very taken with the thought that no phenomenon becomes a true phenomena until it has been observed,” Wald told Salon ...

Explore 9 cosmic mysteries, from galaxy formation to dark energy, the Big Bang, and life beyond Earth. Discover the ...

In December 2022, less than six months after commencing science operations, NASA’s James Webb Space Telescope revealed ...

This is called the “heat death” of the Universe, but you can think of it instead as the death of heat. There will be no more ...

In the modern universe, supermassive black holes at the center of galaxies and their host galaxies grow together. But this ...

NASA's Chandra and NuSTAR telescopes have teamed up to study a supermassive black hole-powered quasar that could have played ...

After decades of study, scientists sound genuinely optimistic about the possibility of detecting primordial black holes, which might explain dark matter.