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Birthday · February 15, 2026

To Fly Free in Space

February 15, 2026

Here’s to you, and all the wonder still ahead.

A little universe, just for you

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Selected image source ↗ APOD published February 15, 2026. Full image credits are on the original APOD entry below. A publication-date match, not a photo taken on your date. Independent of NASA.

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To Fly Free in Space

Original APOD · February 15, 2026 ↗

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What would it be like to fly free in space? About 100 meters from the cargo bay of a space shuttle, Bruce McCandless II was living the dream -- floating farther out than anyone had ever been before. Guided by a Manned Maneuvering Unit (MMU), astronaut McCandless, pictured, was floating free in space. During Space Shuttle mission 41-B in 1984, McCandless and fellow NASA astronaut Robert Stewart were the first to experience such an "untethered space walk". The MMU worked by shooting jets of nitrogen and was used to help deploy and retrieve satellites. With a mass over 140 kilograms, an MMU is heavy on Earth, but, like everything, is weightless when drifting in orbit. The MMU was later replaced with the SAFER backpack propulsion unit.

Explore February 15 in other years · 31 APOD entries, 1996–2026

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