Author Lucie Green

Lucie Green

Recent articles by Lucie Green
The dynamo effect of the Earth’s spinning molten core produces our planet’s magnetic field, which prevents the solar wind from stripping away our atmosphere. Credit: Naeblys / Getty Images

Magnetic fields and how they shape the Universe

Lucie Green takes a closer look at how magnetic fields have shaped the cosmos
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Circumzenithal arc and other daytime astronomy targets. Credit: Ursula Sander / Getty Images

Daytime astronomy

Just because the nights are getting short doesn’t mean you can’t stargaze. We take a look at all the different kinds of astronomy you can do while the Sun is still up in the sky.
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View of the Sun showing solar flares erupting from its surface, captured by NASA's Solar Dynamics Observatory on 8 May 2024 at 01:45 UTC. Credit: NASA/SDO

What causes peaks in activity on the Sun? Scientists are still trying to fully understand the 11-year Solar Cycle

The Solar Cycle peaks and troughs roughly every 11 years, and is an indicator of a rise and fall in activity as observe on the surface of the Sun.
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An image of the aurora over Earth, as seen from the International Space Station on 26 June 2017. Credit: NASA

What causes the Northern Lights?

The Sky at Night's Lucie Green looks at the solar science driving auroral displays.
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