Daniel Cunnama receives funding from the National Research Foundation and the South African Astronomical Observatory. Thanks for asking such an interesting question, Saba. When you talk about planets ...

Whether it's Saint Patrick's Day or National Find A Rainbow Day (April 3), everyone loves finding a rainbow - and maybe a pot of gold at the end. I can't tell you how to find a pot of gold, but I can ...

Rainbows are optical phenomena resulting from the interaction of sunlight, water droplets, and the human visual system, not physical objects. Scientific understanding of rainbows developed over ...

Besides being a point of light, a star is a luminous, spherical mass of plasma, enough to hold itself together under its own gravity. On its own, though, gravitational rounding isn't enough. What ...