New evidence suggests the universe is expanding faster than predicted. Explore the Hubble constant and its implications for ...

Measurements of the distance to the Coma Cluster of galaxies find that it is millions of light years closer than the standard ...

Leo P, a tiny galaxy, stopped making stars after the universe’s reionization. Unlike most galaxies, it restarted billions of ...

NASA's James Webb Space Telescope has captured the infrared glow of an ancient supernova's light echo, revealing ...

A cosmic object spotted by the James Webb Space Telescope has flummoxed astronomers. Now, a research team has studied ...