Black holes seem to be the most obvious explanation for the finding that galaxies harbor �dark� matter that doesn�t emit light but that makes itself noticeable by its gravitational pull. While the simplicity of the idea is appealing, we know that it is wrong. Black holes are so compact that they cause noticeable gravitational lensing, and our observations of gravitational lensing events allow to
Saturday, 23 May 2015
How to make a white dwarf go supernova
- They sit in caves, deep underground. Surrounded by lead, protected from noise, shielded f
- Cosmic ray shower. Artist�s impression.[Img Src]The Large Hadron Collider (LHC) � the wor
- Two weeks ago, I summarized a recent paper by McGaugh et al who reported a correlation in
- Most of my school nightmares are history exams. But I also have physics nightmares, mostl
- A new paper proposes that dark matter may be a quantum fluid that has condensed in puddle
- Once upon a time, at the far end of the universe, two galaxy clusters collided. Their hea
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