Earth and our entire Milky Way galaxy may sit inside a mysterious giant hole which makes the cosmos expand faster here than ...

Particular stars called Cepheid variables allow astronomers to determine distance, and Hubble spotted one of these within M31 ...

Planetariums were a hit with the public. Within decades, they had spread around the world – the first planetarium in the United States opened in Chicago in 1930, while the first one in Asia opened in ...

The expanding universe is one of the most fascinating and far-reaching discoveries in modern science. At its core lies a ...

And with that beginning came an ancient, renewed question: if there was a starting point, who or what started it?This ...

What we saw in the DESI experiments, and now strengthened by our South Pole Telescope observations, is that dark energy is ...

A hundred years ago, astronomer Edwin Hubble revealed a universe of galaxies that existed beyond ours. His influence in astronomy continues to this day.

For over 100 years, two theories have shaped our understanding of the universe: quantum mechanics and Einstein’s general relativity. One explains the tiny world of particles; the other describes ...

However, although photons of light existed since the first second after the Big Bang, they could not yet shine across the ...

Astronomers studied 10,000 stars in Hubble pictures to make this composite image and to learn about the evolution of the Milky Way galaxy. Light from our own galaxy is the most recently produced ...