This week in science

James Webb Telescope ready for launch and more: Understand the world through 7 images

ESA/CNES

Alex Wong/Getty Images News/Getty Images

What you need to know this week: The James Webb Space Telescope was enclosed in its fairing atop the Ariane 5 the week of December 16–22  but it suffered another launch delay.

Here are the week’s biggest science stories, told through 7 stunning images.

Connie Allen