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This Twilight Zone is Dark, Watery, and Full of Intrigue
6 min read

Oceanographers are studying the mysteries of the ocean layer that lies just below the sunlit surface.

Aug 20, 2018
Blog
Preparing for Research at Sea
6 min read

Some advice for anyone preparing for a research cruise: be flexible, be prepared, and be excited.

Aug 16, 2018
Blog
Tale of a Plankton Trip
7 min read

The Research Vessel Sally Ride left Seattle for the northeastern Pacific Ocean, where scientists will work to understand the interactions…

Aug 15, 2018
Blog
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GR SIG Seminar, 27 March 2026

Watch a cosmic gamma-ray fireworks show in this animation using just a year of data from the Large Area Telescope (LAT) aboard NASA’s Fermi Gamma-ray Space Telescope. Each object’s magenta circle grows as it brightens and shrinks as it dims. The yellow circle represents the Sun following its apparent annual path across the sky. The animation shows a subset of the LAT gamma-ray records now available for more than 1,500 objects in a new, continually updated repository. Over 90% of these sources are a type of galaxy called a blazar, powered by the activity of a supermassive black hole.Credit: NASA’s Marshall Space Flight Center/Daniel Kocevski