Face to face with sun-eclipsing Proba-3

Through exquisite, millimeter-scale, formation flying, the dual satellites making up ESA's Proba-3 will accomplish what was previously a space mission impossible: Cast a precisely held shadow from one platform to the other, ...

Understanding the role of the sun in climate change

Although the sun provides nearly all the energy needed to warm the planet, its contribution to climate change remains widely questioned. Many empirically based studies claim that it has a significant effect on climate, while ...

Measuring sunlight from space, on a chip

For 40 years, people have used space-based sensors to measure the amount of light coming from the sun, which gives scientists insight into climate change on Earth.

Novel NASA instrument sets sights on earthbound solar radiation

A very small instrument has a big job ahead of it: measuring all Earth-directed energy coming from the sun and helping scientists understand how that energy influences our planet's severe weather, climate change and other ...

New NASA data sheds light on climate models

Have you ever worn a dark T-shirt on a sunny day and felt the fabric warm in the sun's rays? Most of us know dark colors absorb sunlight and light colors reflect it—but did you know this doesn't work the same way in the ...

September 2017's intense solar activity viewed from space

September 2017 saw a spate of solar activity, with the Sun emitting 27 M-class and four X-class flares and releasing several powerful coronal mass ejections, or CMEs, between Sept. 6-10. Solar flares are powerful bursts of ...

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