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Hubble Constant and Tension
3 min read

We know that the universe is expanding. Astronomer Edwin Hubble, for whom the Hubble Space Telescope is named, discovered cosmic…

Aug 4, 2025
Mission
Why Webb’s Earliest Galaxies Are Blowing Scientists’ Minds
25 min read

With the James Webb Space Telescope, we are seeing the early universe like never before. Webb produces beautiful images and…

Jul 29, 2025
Bullet Cluster (Webb and Chandra Image)
1 min read

The Bullet Cluster is made up of two massive galaxy clusters. Webb shows a vast number of galaxies and foreground…

Jun 30, 2025
Image
Bullet Cluster (NIRCam Image)
1 min read

Webb captured the central region of the Bullet Cluster with its NIRCam (Near-Infrared Camera), revealing many more distant galaxies and…

Jun 30, 2025
Image
Bullet Cluster (Webb and Chandra Compass Image)
1 min read

Composite image of the Bullet Cluster combines near-infrared light from NASA’s James Webb Space Telescope, X-rays from NASA’s Chandra X-Ray…

Jun 30, 2025
Image
Bullet Cluster Hubble to Webb Fade
1 min read

Video fades between images of the Bullet Cluster taken by NASA’s Hubble Space Telescope and NASA’s James Webb Space Telescope.…

Jun 30, 2025
Video
NASA Webb ‘Pierces’ Bullet Cluster, Refines Its Mass
6 min read

NASA’s James Webb Space Telescope recently zeroed in on the Bullet Cluster — delivering highly detailed images that show a…

Jun 30, 2025
Article
Cosmic Dawn with Nobel Laureate John Mather
18 min read

The James Webb Space Telescope is doing something astronomers dreamed about for decades: peering into our universe’s early past, a…

Jun 4, 2025
Meet Our Flying Missions
5 min read

Meet Our Flying Missions NASA’s Astrophysics Division is dedicated to exploring the universe, pushing the boundaries of what is known…

May 28, 2025
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