There are two things you usually need for stargazing: dark skies and clear skies. But if you live in the northern hemisphere like me, this isn’t the time of year for dark skies. And if you live in the north of the UK, as I do, clear skies are never a guarantee. This is why this week I will be talking about a specific type of cloud you can look for during long summer nights.
Noctilucent clouds, also known as polar mesospheric clouds, are a rare kind of cloud that shine a silvery blue colour against the darker night sky.…
