Hints of lightweight dark matter get even stronger
A strange light is shining near the centre of the Milky Way, and evidence is mounting that it is the spark of lightweight dark matter meeting a violent end. At the same time, a suite of sensitive detectors deep underground is seeing hints of similar particles.
Dark matter is thought to make up roughly 80 per cent of the matter in the universe. But aside from its gravitational tug on regular matter, the substance has proven tough to detect, and many of its fundamental properties remain unknown.
The leading theoretical candidates for dark matter are weakly interacting massive particles (WIMPs). It’s thought these particles annihilate when they meet, producing a shower of radiation, including gamma rays. Launched in 2008, NASA’s Fermi space telescope has been scanning for excess gamma rays emanating from the centre of our galaxy, where dark matter should be concentrated.
No comments yet.
- Watch Schrödinger’s cat die (or live): Physicists capture the quantum particles’ bizarre wanderings for the first time
- Samsung’s curved TV goes on sale and goes from flat to concave at the flick of a switc
- Driverless ‘robo-cars’ guided by radar and lasers on UK roads next year despite fears over safety
- Myriad 2, Movidius’ Next-Gen Vision Processor
- Researchers unveil phones, tablets and computers that can automatically correct for poor vision
- DNA-testing for crime scene investigations will soon identify criminals in a matter of HOURS
- Solar Cells Cool Themselves To Increase Efficiency
- Making a great “mobile first” app, the right way
- Lenovo’s beast of a smartphone, the K920, to be announced August 5th, full specs now available
- ‘Epigenetic’ gene tweaks seem to trigger cancer
- Workout while you work: The $199 elliptical trainer designed to fit under your desk
- Atlast (literally)! Nasa to build the world’s most powerful telescope – and it could be our key to finding alien life
- Blogs RO
- Famous Quotes
- Food recipises
- IT Hardware