"We've got a few blobs of different sizes and a mysterious L-shaped filamentary structure. This is all within 16,000 light-years of the black hole." ...
Legendary Active Galaxy Contains a Monster Black Hole Amateur astronomers can observe an extraordinary celestial object known as 3C 273, the most distant target visible through a standard backyard ...
In other words, the universe must be expanding. He announced his finding in 1929. The ratio of distance to redshift was 170 kilometers/second per light year of distance, now called Hubble's constant.
The speeds of the farthest stars and galaxies that we can observe don’t match what the Hubble constant predicts. Because light from a distant object has traveled for billions of years to reach us, our ...
Hubble's images have helped to pin down the age of the universe, which the expansion rate of pulsating stars suggests is some 13 billion to 14 billion years. Hubble has also captured images of ...
We showed in a 2020 paper that this could solve the Hubble tension and explain the galaxy number counts, provided our patch of the universe is about 20% less dense than average out to a billion ...