Black hole sheds light on a galaxy

User rating: 4.6 / 5 after 25 vote(s)

The artistic view shows the light echo of a high-energy flash from a black hole. Illustration: MPEESA
The artistic view shows the light echo of a high-energy flash from a black hole. Illustration: MPE/ESA

A light echo occurs when interstellar gas is heated by radiation and reacts by emission of light. An international team led by Stefanie Komossa from the Max Planck Institute for extraterrestrial Physics in Garching, Germany, has observed the light echo of an enormous X-ray flare, which was almost certainly produced when a single star was disrupted by a supermassive black hole.


Full story »

All News summaries from Space & Earth science news
All News summaries for April 18, 2008

Arctic 'holds 90bln barrels of oil, mostly offshore'

50 minutes ago | User rating: not rated yet
Within the Arctic circle there are 90 billion barrels of oil and vast quantities of natural gas waiting to be tapped, most of it offshore, the government-run US Geological Survey said.

Russian scientists begin trial exploration of world's deepest lake

51 minutes ago | User rating: not rated yet
Russian scientists leading a submarine expedition to probe the world's deepest lake on Thursday carried out test dives ahead of the start of the operation next week, reports said.

Scientists solve 30-year-old aurora borealis mystery

53 minutes ago | User rating: not rated yet
UCLA space scientists and colleagues have identified the mechanism that triggers substorms in space; wreaks havoc on satellites, power grids and communications systems; and leads to the explosive release of energy that causes ...

The Quiet Explosion: Object intermediate between normal supernovae and gamma-ray bursts found

60 minutes ago | User rating: not rated yet
A European-led team of astronomers are providing hints that a recent supernova may not be as normal as initially thought. Instead, the star that exploded is now understood to have collapsed into a black hole, producing a ...

Scientists break record by finding northernmost hydrothermal vent field

1 hour ago | User rating: not rated yet
Well inside the Arctic Circle, scientists have found black smoker vents farther north than anyone has ever seen before. The cluster of five vents – one towering nearly four stories in height – are venting ...