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Colliding Galaxy Clusters

New observations from NASA’s Chandra X-ray Observatory and other telescopes have captured a rare cosmic event: two galaxy clusters have collided and are now poised to head back for another swipe at each other.

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Observations from Chandra and other telescopes have captured a powerful cosmic event: two galaxy clusters have collided and are now poised to head back for another swipe at each other. Galaxy clusters are some of the largest structures in the Universe held together by gravity. In these images, X-rays from Chandra and ESA’s XMM-Newton have been combined with LOFAR data and an optical image from Pan-STARRs of the stars and galaxies in the field of view.

Hubble Captures Cotton Candy Clouds

This NASA/ESA Hubble Space Telescope image features a cloudscape in the Large Magellanic Cloud., a dwarf satellite galaxy of the Milky Way.

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Earth Information Center

Explore our changing planet

For more than 50 years, NASA satellites have provided data on Earth’s land, water, air, temperature, and climate. NASA’s Earth Information Center allows visitors to see how our planet is changing in six key areas: sea level rise and coastal impacts, health and air quality, wildfires, greenhouse gases, sustainable energy, and agriculture.

Earth Science about Explore our changing planet
An astronaut aboard the International Space Station captured this photograph of the Mississippi River while orbiting over Louisiana.