"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." ...
Our journey to comprehend the Universe’s edge begins with the concept of the observable Universe. This term refers to the ...
The James Webb Space Telescope (JWST) has provided a stunning new glimpse into the cosmos, revealing findings that challenge ...
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 ...
"You could lose, or at least completely fry, rocky planets forming close to such a star." ...
Astronomers heading the SETI search for extraterrestrial intelligence predict their quest might first spark an encounter with ...
Two different space telescopes have looked at the same galaxy, so you can see the difference in how they observe the universe ...
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 ...
In "Pillars of Creation," Richard Panek shows how the James Webb Space Telescope is transforming our view of the cosmos.
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 ...