News tagged with black holes

Tremendously bright pulsar may be one of many

Recently, a team of astronomers reported discovering a pulsating star that appears to shine with the energy of 10 million suns. The find, which was announced in Nature, is the brightest pulsar – a type ...

Oct 27, 2014
5 / 5 (10) 1

Centaurus A: A new look at an old friend

(Phys.org) —Just weeks after NASA's Chandra X-ray Observatory began operations in 1999, the telescope pointed at Centaurus A (Cen A, for short). This galaxy, at a distance of about 12 million light-years ...

Feb 06, 2014
4.8 / 5 (21) 49 | with audio podcast

Swift catches X-ray action at Milky Way's center

(Phys.org) —Recent observations by NASA's Swift spacecraft have provided scientists a unique glimpse into the activity at the center of our galaxy and led to the discovery of a rare celestial entity that ...

Jan 08, 2014
4.5 / 5 (11) 0 | with audio podcast

NASA image: A hungry starburst galaxy

(Phys.org) —This new Hubble picture is the sharpest ever image of the core of spiral galaxy Messier 61. Taken using the High Resolution Channel of Hubble's Advanced Camera for Surveys, the central part ...

May 13, 2014
3.8 / 5 (5) 0

Runaway binary stars

CfA astronomers made a remarkable and fortuitous discovery in 2005: an extremely fast moving star, clocked going over three million kilometers an hour. It appears to have been ejected from the vicinity of ...

Oct 07, 2013
4.8 / 5 (12) 0 | with audio podcast

ALMA probes mysteries of jets from giant black holes

Two international teams of astronomers have used the power of the Atacama Large Millimeter/submillimeter Array to focus on jets from the huge black holes at the centers of galaxies and observe how they affect ...

Oct 16, 2013
4.3 / 5 (13) 3 | with audio podcast

Gaia discovers its first supernova

(Phys.org) —While scanning the sky to measure the positions and movements of stars in our Galaxy, Gaia has discovered its first stellar explosion in another galaxy far, far away.

Sep 12, 2014
4.5 / 5 (11) 1

Hubble finds jets and explosions in NGC 7793

(Phys.org) —This new image from the NASA/ESA Hubble Space Telescope shows NGC 7793, a spiral galaxy in the constellation of Sculptor some 13 million light-years away from Earth. NGC 7793 is one of the brightest ...

Sep 29, 2014
4.8 / 5 (8) 1