'Cosmic coincidence': What we can learn from the solar eclipse
Next week, millions of people across North America will be able to see a total solar eclipse, a once-in-a-lifetime experience for many.
A total solar eclipse - where the moon moves in front of the sun - happens about every 18 months. However, it rarely takes place over land, so next week's is an incredibly rare opportunity for scientists and amateurs alike to witness the phenomenon.
On the Sky News Daily, our data and forensics correspondent Tom Cheshire chats to NASA's deputy administrator and retired astronaut Pam Melroy about why solar eclipses are so important for scientists and learning…
The skinny
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