Orange Dwarf Stars Most Likely to Host Planets To date astronomers have discovered over 4,000 planets orbiting other stars. Statistically, there should be over 100…
Movie Dissects the Nebula’s Intricate Nested Structure In the year 1054 AD, Chinese sky watchers witnessed the sudden appearance of a “new star” in the…
One black hole is influencing the rate of star formation in multiple galaxies and across vast distances. This is a rare example of “positive feedback”…
Update (January 10, 2020): A team of astronomers from the Universities of Erlangen-Nürnberg and Potsdam discovered that this object may not be a black hole…
Astronomers have confirmed the first example of a galaxy cluster where large numbers of stars are being born at its core. Using data from NASA…
A new movie of the Cassiopeia A supernova remnant shows how it has evolved over more than a dozen years in X-ray light. NASA’s Chandra…
A mega-merger of four galaxy clusters in Abell 1758 has been observed by Chandra and other telescopes. Abell 1758 contains two pairs of galaxy clusters,…
In 1572, Danish astronomer Tycho Brahe was among those who noticed a new bright object in the constellation Cassiopeia. Adding fuel to the intellectual fire…
Astronomers have spotted three giant black holes within a titanic collision of three galaxies. The unusual system was captured by several observatories, including three NASA…
Pops of bright blue and green in this image of the Fireworks galaxy (NGC 6946) show the locations of extremely bright sources of X-ray light…
A group of astronomers, including Penn State scientists, has announced the likely discovery of a highly obscured black hole existing only 850 million years after…
On July 23, 1999, the Space Shuttle Columbia blasted off from the Kennedy Space Center carrying the Chandra X-ray Observatory. In the two decades that…
A new study has revealed how fast some distant, rapidly growing supermassive black holes are spinning. The material around of one these black holes is…
This artist’s illustration depicts a coronal mass ejection, or CME, which involves a large-scale expulsion of material, and have frequently been observed on our Sun….
X-ray observations have found copious amounts of very hot gas in galaxy clusters, and in the central regions more than was expected. While supernovae and…
Want to take a trip to the center of the Milky Way? Check out a new immersive, ultra-high-definition visualization. This 360-movie offers an unparalleled opportunity…
Fancy a cup of cosmic tea? This one isn’t as calming as the ones on Earth. In a galaxy hosting a structure nicknamed the “Teacup,”…
New results from NASA’s Chandra X-ray Observatory may have helped solve the Universe’s “missing mass” problem. Astronomers cannot account for about a third of the…