Invisible Galaxy Of Dark Matter Discovered

In 2001, a group of astronomers led by Neil Trentham of the University of Cambridge predicted the existence of dark galaxies - vast collections of dark matter. Dark galaxies are thought to form when the density of matter in a galaxy is too low to create the conditions for star formation.

Since that time, an international team from the UK, France, Italy and Australia have been searching for dark galaxies with radio telescopes.

Objects thought to be dark galaxies have since turned out to contain stars when studied with high-powered optical telescopes. Others have been found to be the remnants of two galaxies colliding. However, when the scientists studied the area in question using the Isaac Newton Telescope in La Palma, they found no visible trace of any stars, and no nearby galaxies that would suggest a collision.

The astronomers first took observations of the dark object back in 2000 and it has taken almost five years to rule out all the other possible explanations. VIRGOHI21 appears to be the first dark galaxy ever detected.


(The ellipse shows were the dark galaxy was found)

Dr Robert Minchin from Cardiff University is one of the UK astronomers who discovered the mysterious galaxy. He explains:

"From the speed it is spinning, we realised that VIRGOHI21 was a thousand times more massive than could be accounted for by the observed hydrogen atoms alone. If it were an ordinary galaxy, then it should be quite bright and would be visible with a good amateur telescope."

In 1929, science fiction author Edmond Hamilton wrote Outside the Universe. In this tale, a equally diverse interstellar team from Earth (leader Dur Nal), Antares (represented by metal-bodied Korus Kan) and Spica (in the person of lobster-man Jhul Din) are on patrol duty at the edge of our galaxy when they see a swarm of hostile spaceships entering from intergalactic space. *Spoiler Alert!* It turns out that the ships are piloted by serpent-men from a dying, invisible galaxy. They had first tried to take over the Andromeda galaxy, but were defeated and forced to move on.

Read more about the discovery at First Invisible Galaxy Discovered in Cosmology Breakthrough and Seeing the invisible - first dark galaxy discovered. Special thanks to Winchell Chung for the tip on this story.

Scroll down for more stories in the same category. (Story submitted 2/26/2005)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 2 )

Related News Stories - (" Space Tech ")

Will A Steel Umbrella Stop Russia?
'Everyone was aware that the damned platform was wandering around in its own orbit...' - EB White, 1950.

NASA Wants To Make Oxygen On Mars
'They plop down on the Red and if the dust is deep enough ... they burrow in...' - Greg Bear, 2014.

A Look Into The Future Of Spacecraft!
Ever wonder how you look when you enter a new part of a spacecraft?

Breakthrough Starshot Sprites Yearn For Alpha Centauri
'Whoever launched it fired a laser cannon...' - Niven and Pournelle, 1971.

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

 

Current News

Will A Steel Umbrella Stop Russia?
'Everyone was aware that the damned platform was wandering around in its own orbit...'

EVE Artificial Womb For Lambs (For Now)
'In the crimson darkness, stewing warm on their cushion of peritoneum and gorged with blood-surrogate and hormones...'

TIKAD Armed Drone Ready To Fight
'Each a television eye and a sonic stunner...'

Bees Royal Jelly Helps Wounds Heal Faster
'An alien drug... used by an insect race.'

NASA Wants To Make Oxygen On Mars
'They plop down on the Red and if the dust is deep enough ... they burrow in...'

Hackers Insert Malware Into DNA
'They tied the memory to the bloodline and that was their record!'

X2-VelociRoACH Cooperates To Launch Tiny Drones
Little robots cooperating can do big tasks. Eventually.

'Do Not Pay' Chatbots To Replace Law Firm Associates?
'I want my lawyer program.'

MULTI Model Of Star Trek Turbolift
Cool prototype video!

A Look Into The Future Of Spacecraft!
Ever wonder how you look when you enter a new part of a spacecraft?

An 'Ethical Black Box' For Robots?
Explored by science fiction authors.

Dadbot Digital Immortality
'A hardwired ROM cassette replicating a dead man's skills...'

Should We Permit Computers To Create Their Own Language?
'Talk Between Robots radio...'

Breakthrough Starshot Sprites Yearn For Alpha Centauri
'Whoever launched it fired a laser cannon...'

Kino Project Roaming Personal Fashion Robots
'Most of the crew have the tiny imp ride on their shoulder...'

Astronaut Exercise Video, Predicted By SF Writers
'Joe got out the gravity-simulator harnesses.'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.