NASA Sun & Space

NASA Sun & Space

We study the Sun and how it affects space around Earth and other worlds, producing key knowledge to protect astronauts, satellites and robotic missions.

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Radiation from the Sun breaks apart molecules in the Martian atmosphere, in turn producing an ultraviolet glow. New research shows this nightglow pulses during certain seasons, helping scientists better understand circulation patterns in Mars’ atmosphere:

The Sun may seem calm and unchanging, but it's a dynamic star, constantly releasing solar material and radiation that affect the entire solar system. Join solar scientists on @NASA’s Curious Universe podcast to explore our lively and mysterious star:

Scientists sometimes use harmless tracing gases released from sounding rockets — seen here — to illuminate the invisible currents in the upper atmosphere. This Jan. 2018 flight revealed turbulence in an otherwise stable layer of the atmosphere:

All the planets of our solar system are encased in a magnetic bubble carved out by the Sun's outflowing material. A new model suggests that — instead of a long-tailed, comet-like shape — this bubble could look something like a deflated croissant.

Helium is the second most abundant element in the universe after hydrogen, but scientists aren’t sure just how much there actually is in the Sun’s atmosphere, where it's hard to measure. New results from a sounding rocket shed more light on the question.

This #SunDay , learn how scientists used data from our Solar Dynamics Observatory satellite to develop a model that predicted some of the Sun's most powerful flares. This could be used to one day inform forecasts of these intense bursts of solar radiation.

Data from @CassiniSaturn ’s Cassini & New Horizons missions is helping us study the shape of our solar system’s bubble. Their particle measurements let scientists develop a new model of how our solar system’s material interacts with interstellar space.

The curling waves in this image trace out invisible currents in the upper atmosphere, revealed by a sounding rocket flight in Jan. 2018. The study showed turbulence sloshing in an otherwise stable layer of the atmosphere. Read more:


#SolarOrbiter has made its first close pass by the Sun, studying our star and space with a comprehensive suite of instruments — and the data is already revealing previously unseen details. This is #TheSunUpClose .

No #eclipse  glasses? You can still watch #Eclipse2017  by making your own pinhole projector!

Need a new perspective? #ParkerSolarProbe  saw comet #NEOWISE  from its unique position in space on July 5, giving scientists a good look at the comet’s dual tails. More:

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