As night falls on the Atacama desert in northern Chile four giant telescopes turn their gaze towards the star-strewn heavens.

These are noctilucent (night-shining) clouds. “Even though the sun has ... making them seem to almost glow in the sky,” wrote Alex Innanen, a York University atmospheric scientist, in the ...

Lenticular Clouds Lenticular clouds, with their distinctive lens shape, often hover over mountain ranges like alien ...

When you take a look deep into the night sky, Venus might look like it's noticeably yellow. Here's the science behind why it appears that way.

I pick out North America’s celestial highlights for the week ahead (which also applies to northern hemisphere mid-northern ...

The night sky tonight and on any clear night offers an ... They are indeed related – born of the same primordial gas cloud. To the unaided eye, only six of the stars are usually apparent ...

The area near clouds is often classified as ‘clear sky’, but a new study demonstrates the potential biases of misclassifying ...

With each passing night as, the crescent slowly widens and it begins to appear against a progressively darker background, its ...

February stargazing is fantastic for many reasons, but this year there’s a one-two-three punch of bright planets adding to ...

there’ll be plenty to see in the night sky–cloud cover permitting. Here are some of this month’s highlights. As we discussed last month, late January and early February will provide a stage ...