Astronomers have completed the largest and most detailed study of what triggers a star birth in the universe’s biggest galaxies, using NASA’s Chandra X-ray Observatory and other telescopes.
Astronomers have found the most distant X-ray black hole, challenging our understanding of supermassive black hole formation in the early universe. Astronomers using NASA telescopes have discovered the most distant black hole observed in X-rays to date. The black hole is at an early stage of grow
Class turned research collaboration uses ‘nature’s telescope’ to reach across cosmic time
The night sky is a natural time machine, used by cosmologists to explore the origins and evolution of the universe. Reaching into the depths of the past, a class of undergraduate students at the University of Chicago sought to do the same and uncovered an extraordinarily distant galaxy in the early cosmos.
Light emitted from faraway celestial objects takes a long time to reach Earth-side observers. That means the stars and galaxies we see in the sky appear to us as they would have existed millions, or even billions, of years ago.