Access
To read this story in full you will need to login or make a payment (see right).
News and Views
Nature 426, 781-782 (18 December 2003) | doi:10.1038/426781a
Open Innovation Challenges
-
Methods to Analyze Consumer Emotions
The Seeker is looking for methods to analyze consumer emotions. This Challenge requires only a writ...
-
Optimizing Sub-cellular Localization Tags
The Seeker is looking for methods to optimize sub-cellular localization tags for protein expression....
- More Challenges
- Powered by:
nature jobs
Instrumentation Engineer
- Praj Matrix - Praj Industries Ltd
- Pune, Maharashtra Pune-411021 India
Two Post-Doctoral Position In Nanomedicine
- Fondazione IRCCS Istituto Neurologico "Carlo Besta" (FINCB)
- Via Celoria n.11, 20133 Milano, Italy
Astronomy: Wide-angle lens
Joachim Wambsganss1
Abstract
Gravitational lenses produce multiple images of single astronomical objects. The most widely separated images of a quasar ever found reveal the dark-matter content of the lensing galaxies.
Record-breaking is usually gently incremental, each record a slight improvement on the last. It's rare that a new record more than doubles the old record-holding value, particularly one that had stood for more than two decades.
- Joachim Wambsganss is at the Physics Institute, University of Potsdam, Am Neuen Palais 10, 14469 Potsdam, Germany.
Email: jkw@astro.physik.uni-potsdam.de
To read this story in full you will need to login or make a payment (see right).
