What was that weird cloud over Tampa Bay? On the morning of March 4, 2026, many people in Florida saw a strange glowing cloud in the sky. It looked a little like a jellyfish or a giant glowing bubble!

The cloud was actually created by a SpaceX rocket launch from Cape Canaveral. As the rocket traveled high into the sky, it released gases like water vapor. These gases spread out and formed a large plume that looked like a cloud.

Because the launch happened just before sunrise, the Sun was already shining on the rocket plume high above Earth, even though it was still darker closer to the ground. The sunlight made the plume glow and spread out, creating the unusual shape people saw in the sky.

Scientists sometimes call this effect a “space jellyfish” because the glowing plume can look like the body and tentacles of a jellyfish floating through the sky.

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The glowing cloud from the recent SpaceX launch may have looked like a giant jellyfish in the sky—but real jellyfish live much closer to home! These fascinating ocean animals drift through the water using gentle pulses and glowing colors that can look just as otherworldly as anything in space. Take a moment to watch these incredible aquatic invertebrates in action.