article_snippet.sent: Alma's image of the gravitationally lensed galaxy SDP.81.
article_snippet.sent: In this particular case, the galaxy known as SDP.81 and an intervening galaxy line up so perfectly that the light from the more distant one forms a nearly complete circle as seen from Earth.
article_snippet.sent: In this particular case, the galaxy known as SDP.81 and an intervening galaxy line up so perfectly that the light from the more distant one forms a nearly complete circle as seen from EarthEarth.
article_snippet.sent: Discovered by the Herschel Space Observatory, SDP.81 is an active star-forming galaxy nearly 12 billion light-years away, seen at a time when the universe was only 15 percent of SDP.81 current age.
article_snippet.sent: SDP.81 is being lensed by a massive foreground galaxy that is a comparatively nearby 4 billion light-years away. '
article_snippet.sent: An AlmaHubble composite image of the gravitationally lensed galaxy SDP.81.
article_snippet.sent: The highest resolution image of SDP.81 was made by observing the relatively bright light emitted by cosmic dust in the distant galaxy.