The fruit of a native tree called the Osage orange is a strange-looking, lime green object found in nature. If perhaps you do not recognize that name, it's also called hedge apple, horse apple and ...

Is your green my green? Probably not. What appears as pure green to me is likely to look a bit yellowish or bluish to you. This is because visual systems vary from person to person. Moreover, an ...

From the time Disneyland opened in July of 1955, Walt Disney did everything in his power to differentiate the massive theme park from any others. Disney is its own world full of fantasy, futuristic ...

Some rare galaxies, like NGC 5972 shown here, exhibit a green glow thanks to the presence of doubly ionized oxygen. This requires UV light from stellar temperatures of 50,000 K and above. Oxygen is ...

A star's color is determined by its temperature. Hotter stars appear blue; cooler stars appear red. Stars emit light across a range of colors, not just one. No star can emit only green light because ...

When 3I/ATLAS was first spotted a few months ago, it seemed to emit a reddish color. But earlier this month, some astronomers noted it was glowing green. So why is our latest interstellar visitor ...