The James Webb Space Telescope Has Launched: Now Comes the Hard Part
After years of delay, the most ambitious observatory ever built has at last left Earth. It now faces a high-stakes series of deployments in deep space
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The James Webb Space Telescope Has Launched: Now Comes the Hard Part
After years of delay, the most ambitious observatory ever built has at last left Earth. It now faces a high-stakes series of deployments in deep space
NASA’s DART Mission Could Help Cancel an Asteroid Apocalypse
Our planet is vulnerable to thousands of “city-killer” space rocks. If—when—one is found on a collision course with Earth, will we be ready to deflect it?
Dark Matter May Be Missing from This Newfound Galaxy, Astronomers Say
A growing number of galaxies seem to be bereft of the mysterious substance, posing fresh challenges for some of cosmology’s most cherished theories