Science
Your Guide to NASA’s James Webb Space… – The Planetary Society
Webb will see galaxies that formed just after the Big Bang and help determine whether planets orbiting other stars could support life.
How Webb sees back in time
The farther away objects are, the longer it takes their light to
reach us, meaning when we look at a distant galaxy, we are actually
seeing what that galaxy looked like in the past. When you look at the
Moon, you are seeing it as it existed 1 second ago. The sunlight warming
your face on a beautiful day is 8 minutes old. The Andromeda Galaxy,
which looks like a smudge of light through binoculars, is actually 2.5 million years older than it appears now!
Hubble ca…
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