Webb spotlights gravitational arcs in 'El Gordo' galaxy cluster

A new image of the galaxy cluster known as "El Gordo" is revealing distant and dusty objects never seen before, and providing a bounty of fresh science. The infrared image, taken by NASA's James Webb Space Telescope, displays ...

A gamma ray burst lasted so long it triggered a satellite twice

Gamma ray bursts (GRBs) are the most powerful astrophysical phenomena in the universe. For a span of seconds to a few minutes, they can be the most powerful high-energy event in the sky, shining across billions of light years.

Galaxy J1135 reveals its water map

Water is essential for life, but for astrophysicists, it represents something more. Researchers look at water in galaxies, its distribution and in particular its changes of state from ice to vapor, as important markers indicating ...

Image: Hubble views a galactic monster

The NASA/ESA Hubble Space Telescope has captured a monster in the making in this observation of the exceptional galaxy cluster eMACS J1353.7+4329, which lies about eight billion light-years from Earth in the constellation ...

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