News tagged with black holes

The search for medium-sized black holes

Black holes can be petite, with masses only about 10 times that of our sun—or monstrous, boasting the equivalent in mass up to 10 billion suns. Do black holes also come in size medium? NASA's Nuclear Spectroscopic ...

Nov 27, 2013
5 / 5 (4) 0 | with audio podcast

Image: Hubble shoots Bright Quasar 3C 273

(Phys.org) —This image from Hubble's Wide Field and Planetary Camera 2 (WFPC2) is likely the best of ancient and brilliant quasar 3C 273, which resides in a giant elliptical galaxy in the constellation ...

Nov 25, 2013
4.8 / 5 (12) 3 | with audio podcast

Video: Guide to our Galaxy

This virtual journey shows the different components that make up our home galaxy, the Milky Way, which contains about a hundred billion stars.

Nov 22, 2013
5 / 5 (4) 1

NASA sees 'watershed' cosmic blast in unique detail

(Phys.org) —On April 27, a blast of light from a dying star in a distant galaxy became the focus of astronomers around the world. The explosion, known as a gamma-ray burst and designated GRB 130427A, tops ...

Nov 21, 2013
4.9 / 5 (23) 2 | with audio podcast

Image: Hot gas sloshing in a galactic cauldron

(Phys.org) —Galaxies are social beasts that are mostly found in groups or clusters – large assemblies of galaxies that are permeated by even larger amounts of diffuse gas. With temperatures of 10 million ...

Nov 19, 2013
5 / 5 (5) 18 | with audio podcast

Hubble views an old and mysterious cluster

The NASA/ESA Hubble Space Telescope has captured the best ever image of the globular cluster Messier 15, a gathering of very old stars that orbits the centre of the Milky Way. This glittering cluster contains ...

Nov 14, 2013
4.6 / 5 (10) 5 | with audio podcast

New type of black-hole quasar discovered

(Phys.org) —Like our Milky Way, every known large galaxy has at its center a supermassive black hole, some of which are surrounded by a super-bright disk of hot gas called a quasar—but now a research ...

Nov 08, 2013
4.4 / 5 (30) 5 | with audio podcast

Black holes don't make a big splash

(Phys.org) —Throughout our universe, tucked inside galaxies far, far away, giant black holes are pairing up and merging. As the massive bodies dance around each other in close embraces, they send out gravitational ...

Nov 07, 2013
4.5 / 5 (19) 19 | with audio podcast

Image: Galaxy NGC 4945

This image provides a view into the central region of a galaxy that is similar in overall appearance to our own Milky Way, but contains a much more active supermassive black hole within the white area near ...

Nov 05, 2013
5 / 5 (2) 0