I remember hearing about it on TV a few months ago and I'm trying to find the name of the picture. It shows an image of space but with two galaxies (or is it stars?) nearby each other but actually they are both images of the same star or galaxy. It was explained by the curvature of space-time i won't go into detail. Does anyone know the name of the galaxy/star or the picture?
Peter T
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Here's a link to a news item from July this year about an observation of gravitational lensing.
http://www.space.com/scienceastronomy/quasar-galaxy-gravitational-lens-100727.html
The foreground quasar, which is shown in blue in the images, is called SDSS J0013+1523. The background galaxy, of which there are two images, one either side of the quasar is not named.
You can read the scientific article here:
http://arxiv.org/PS_cache/arxiv/pdf/1002/1002.4991v2.pdf