A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the ...

Perimeter Institute for Theoretical Physics (Perimeter) invites you to celebrate 25 years of discovery with the opening of ...

The journey of astronomical telescopes began in the early 17th century when Galileo Galilei crafted his first refracting telescope in 1609. Although not the inventor of the telescope, Galileo was the ...

To Galileo, the moons proved that not everything in space circled the Earth, and therefore our planet was not the absolute center of the universe, as the Church maintained the Bible had it.

But the universe seems to have its own way of weaving stories, linking two men who defied their times to explore the infinite. Imagine standing alone against an empire. That's what Galileo did ...

Pretty soon, people realized they could turn those instruments toward the night sky and reveal a previously unseen universe in grand detail. Still, even Galileo recognized the ground-based uses of ...

Galileo changed the way we study motion. He backed experimentation as a means of uncovering the secrets of nature. And his discoveries with the telescope changed our understanding of the universe.

Astrophotographers use sophisticated imaging technology to take and edit photographs that bring us the cosmos with startling ...

3 min read The Hubble Space Telescope was designed to free astronomers of a limitation that has plagued them since the days of Galileo ... to peer farther into the universe and see the cosmos ...

When all was said and done, the major thinkers of the Scientific Revolution (Copernicus, Kepler, Galileo, Newton, Descartes) had revealed a universe which seemed like a perfectly run machine ...

However, Galileo's trials and theories inspired others like Sir Isaac Newton and Johannes Kepler to prove that the Earth was not the center of the universe. Some years ago, the Pope accepted that ...

Far from feeling constrained by what the Bible says, the Middle Ages speculated boldly on whether God could have created an ...