an ethereal spectacle sometimes appears in the sky—clouds that shimmer with a ghostly blue-white light. These mysterious night-shining clouds, or noctilucent clouds, seem almost otherworldly ...

The best time to see noctilucent clouds is on clear nights between late May and mid-August, about 90 to 120 minutes after ...

Fireflies need darkness to communicate. Males perform an airborne dance while flashing their abdominal lanterns in a pattern ...

A minor geomagnetic storm (level 1 of 5) is likely this week, according to NOAA's Space Weather Prediction Center. Typically, ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. If you're in the northern hemisphere and it's been a ...

This month's night sky is filled with close-range meteors, swirling nebulas, and prime stargazing conditions. Here’s when you ...

At night, clouds trap heat, preventing it from escaping ... One of the most mesmerizing aspects of clouds is their constant movement across the sky. This movement is driven by wind currents ...

The 2025 strawberry moon will be the lowest in nearly two decades, giving the moon a larger appearance from down here on ...

Vast clouds of gas within it slowly collapse to ... glowing patches in the night sky. The LMC and SMC are the closest major galaxies to our own and lie about 163,000 and 200,000 light-years ...

A total lunar eclipse will flush the moon red Thursday night into Friday morning across the country including Boston, where viewers will have to hope for a break in the clouds to see the spectacle.

Astronomers and clouds are natural enemies, owing largely to the latter's habit of obscuring the sky beyond with dense ... high-altitude icy particles as night settles in. Noctilucent clouds ...

Multiple solar flares have erupted on the sun, but despite the frenzy of activity on the sun, this could be the hardest week ...