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Over several years, astronomers have noticed flares in X-ray light from the black hole at the center of the Milky Way. [ Čítaj celý článok ]

G350.1+0.3 is a young and exceptionally bright supernova remnant located nearly 15,000 light years from Earth toward the center of the Milky Way. [ Čítaj celý článok ]

Researchers have been traveling for decades to some of the coldest places on the planet to uncover some of the secrets from space that have been left behind on Earth. [ Čítaj celý článok ]

Astronomers using the Chandra X-ray Observatory and ground-based optical telescopes have discovered an extraordinary galaxy cluster some 7.2 billion light years from Earth. [ Čítaj celý článok ]

The Milky Way galaxy has several small satellite galaxies very close to it. One of them is called the Small Magellanic Cloud. [ Čítaj celý článok ]

The galaxy cluster Abell 2052 is found some 480 million light years from Earth. At the center of Abell 2052 is a giant elliptical galaxy, and within that is a supermassive black hole. [ Čítaj celý článok ]

30 Doradus is a place where stars are born literally. This region, which is also known as the Tarantula Nebula, is located about 160,000 light years from Earth. [ Čítaj celý článok ]

Over three decades ago, Stephen Hawking placed, and eventually lost, a bet against the existence of a black hole in Cygnus X-1. [ Čítaj celý článok ]

In 185 A.D., Chinese astronomers noted a "guest star" that mysteriously appeared in the sky and stayed for about 8 months. [ Čítaj celý článok ]

Astronomers have recently completed a large survey of the sky using some of the powerful telescopes both on the ground and in space. [ Čítaj celý článok ]

G299.2-2.9 is an intriguing supernova remnant found about 16,000 light years away in the Milky Way galaxy. [ Čítaj celý článok ]

High-mass stars are important because they are responsible for much of the energy pumped into a galaxy over its lifetime. [ Čítaj celý článok ]

In recent years, astronomers have found hundreds of planets orbiting stars other than our Sun. [ Čítaj celý článok ]

Astronomers using NASA's Chandra X-ray Observatory have discovered the first pair of supermassive black holes in a spiral galaxy similar to the Milky Way. [ Čítaj celý článok ]

VV 340, also known as Arp 302, is a textbook example of colliding galaxies seen in the very early stages of their interaction. [ Čítaj celý článok ]

The Crab Nebula is one of the brightest sources of high-energy radiation in the sky. [ Čítaj celý článok ]

This is NGC 3115, a galaxy located about 32 million light years from Earth. This composite image contains X-rays from Chandra as well as optical data from the Very Large Telescope. [ Čítaj celý článok ]

A spinning neutron star is tied to a mysterious tail, or is it? Astronomers using NASA's Chandra X-ray Observatory have found a long, X-ray bright tail streaming away from the pulsar known as PSR J0357. [ Čítaj celý článok ]

One of the most complicated and dramatic collisions ever seen between galaxy clusters is captured in this new composite image. [ Čítaj celý článok ]

This image is what is known as the Chandra Deep Field South, a 4-million-second exposure made by NASA's Chandra X-ray Observatory. [ Čítaj celý článok ]