This NASA/ESA Hubble Space Telescope image offers us the chance to see a distant galaxy now some 19.5 billion light-years ...

It's two galaxies, many billions of light-years apart, combined into one by a rare cosmic phenomenon called an Einstein ring ... quirks of nature — a gravitational lens. It's when the ...

The school-bus-sized observatory launched on April 24, 1990 and overcame early setbacks to become one of the most scientifically productive instruments in history. From its vantage point 320 miles ...

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Thanks to Albert ... using the Hubble Space Telescope and from the Gaia space probe. This time, the researchers have even stronger evidence that this gravitational 'lens' could only be a black ...

Webb's NIRCam instrument can see many more stars than Hubble ... help. Gravitational lensing can magnify distant objects, sometimes distorting the light to produce so-called Einstein Rings.

The James Webb Space Telescope was late to launch, but the observatory is making up for lost time. After several years of operation, Webb has captured some truly stunning cosmic vistas, complete ...