Nasa telescope takes first full-color image of distant galaxies


2022-07-12 05:39:01



U.S. President Joe Biden, pausing from political pressures to bask in the glow of the cosmos, on Monday released the debut photo from NASA's James Webb Space Telescope - an image of a galaxy cluster revealing the most detailed glimpse of the early universe ever seen. Distant galaxies, bright nebulae and a faraway giant gas planet are among the observatory's first targets

The $9 billion Webb observatory, the largest and most powerful space science telescope ever launched, was designed to peer through the cosmos to the dawn of the known universe, ushering in a revolutionary era of astronomical discovery.

The image showcased by Biden and NASA chief Bill Nelson showed the 4.6 billion-year-old galaxy cluster named SMACS 0723, whose combined mass acts as a "gravitational lens," distorting space to greatly magnify the light coming from more distant galaxies behind it.

At least one of the faint, older specs of light appearing in the "background" of the photo - a composite of images of different wavelengths of light - dates back more than 13 billion years, Nelson said. That makes it just 800 million years younger than the Big Bang, the theoretical flashpoint that set the expansion of the known universe in motion some 13.8 billion years ago.