For me the revelation came the first time I took a photograph of that galaxy and realized that just because the visible universe is so far away didn’t mean I needed a big telescope to photograph it.
Just like we use photos to reflect on memories of our past, astrophysicists want to use images of far-off galaxies to understand what the universe was like in its juvenile years.
One is to take pictures of the very first stars to shine in the Universe more than 13.5 billion years ago; the other is to probe far-off planets ... golden mirror and super-sensitive infrared ...
SMACS 0723: Red arcs in the image trace light from galaxies in the very early Universe ... takes super sharp view of early cosmos Nasa space telescope delivers spectacular pictures A $10bn machine ...