In the 1920s, astronomers thought that the Milky Way was the entire universe. Hubble's discovery revealed a much bigger ...

A pair of quasars that existed when the universe was only 3 billion years old has been spotted by the Hubble Space Telescope. The quasars were powered by a pair of supermassive black holes on a ...

The rate at which the universe is expanding, known as the Hubble constant, is one of the fundamental parameters for understanding the evolution and ultimate fate of the cosmos. However, a ...

This artist’s illustration shows the largest radio jet ever found in the early ... when the universe was less than 10% of its current age. Observed using the Gemini North and Hubble telescopes ...

Yet, a century ago, its discovery by Edwin Hubble opened humanity's eyes as to how large the universe really is ... but by the early 20th century Henrietta Swan Leavitt had discovered that ...

Uniquely, DESI is able to derive the Hubble constant based on predictions from both the early and late universe. By observing the now scaled-up BAOs in the distribution of galaxies along the ...

New James Webb Space Telescope observations of a star cluster called NGC 346 are shedding light on how, when and where ...

cosmologists obtained a Hubble constant of roughly 67 kilometers per second per megaparsec (km/s/Mpc). This result, alongside other measurements of the early universe, aligned with predictions ...

On March 15, 2024, a space-based observatory detected bursts of low-energy X-rays from deep in the ancient universe, fluctuating in brightness for over 17 minutes before fading away. About an hour ...

Yet, a century ago, its discovery by Edwin Hubble, then an astronomer at Carnegie Observatories, opened humanity's eyes as to how large the universe ... but by the early 20th century Henrietta ...

The mystery arose more than 20 years ago, when the Hubble ... in the universe's history than scientists thought was possible. But astronomers were unsure exactly how it formed so early in the ...