ICYMI: Canadian Space Agency, NASA, ESA unveil Webb telescope's first images of the cosmos
Among the four other Webb “targets” getting their closeups on Tuesday are two enormous clouds of gas and dust blasted into space by stellar explosions to form incubators for new stars – the Carina Nebula and the Southern Ring Nebula, each thousands of light years away from Earth.
Built to view its subjects chiefly in the infrared spectrum, Webb is about 100 times more sensitive than its 30-year-old predecessor, the Hubble Space Telescope, which operates mainly at optical and ultraviolet wavelengths. The SMACS 0723 image Biden released on Monday showed a 4.6 billion-year-old galaxy cluster whose combined mass acts as a “gravitational lens,” distorting space to greatly magnify the light coming from more distant galaxies behind it.Article content
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