This is the breathtaking moment an adorable cloud formation appeared above the road in North Sulawesi, Indonesia. The footage ...

At these heights, the atmosphere is cold enough that clouds are typically composed of ice crystals, not water droplets. These clouds often look thin, wispy, and delicate—but they can provide valuable ...

In a remarkable feat of amateur astrophotography, Michele Hernandez Bayliss, a Vermont-based astronomer, has managed to ...

At 300 light-years away, the interstellar cloud is the closest of its kind ever found to Earth and the largest apparent single structure in the sky.