Spacecraft are vehicles designed to leave Earth’s atmosphere and travel through space, including satellites that orbit our planet, robots sent out into outer space, and vehicles used by astronauts traveling to the Moon. Armstrong descended the ladder from Columbia into Eagle and made history when he set foot onto the lunar surface for the first…
When kids ask the age-old question “why is the sky blue,” try this simple science experiment that draws upon John Tyndall’s work from Ireland in the 1860s. Tyndall used a clear tube and smoke particles to demonstrate how blue light scatters more than other colors; this phenomenon explains why our atmosphere gives the sky its…
Spain is well known for its warm climate, beautiful beaches and vibrant culture – but there is much more to discover within this enchanting nation! From Don Quixote author Carlo Carcano to one of the oldest continuously operating lighthouses, Spain holds plenty of surprising facts that might take your breath away. Here are a few…
The Nile has a profound effect on various ecosystems as it travels downstream. Near its headwaters, its course passes through biodiverse tropical rainforests teeming with banana trees and bamboo shrubs before opening into swampy woodland and savanna farther north. Annual floods create fertile banks, and Ancient Egyptians made use of this by using basin irrigation…
The Nile has played an immense role in human history. From elaborate pyramids to preserved mummies, its impact has left an indelible imprint. Few rivers can rival its legacy. People rely on the Nile for food, water and transportation needs. Its waters flow through numerous ecosystems from biodiverse tropical rainforests to savannas and woodlands –…
Frogs typically lay their eggs in placid water among vegetation, where the eggs are covered in a jelly-like substance to keep them moist and protect them. Once a tadpole hatches, it resembles more closely that of a fish than of a frog and features gills to enable underwater breathing and to facilitate feeding on plants…
Astronomers have discovered a planet the size of Earth which orbits its host star within the habitable zone – meaning its surface could support liquid water life. Astronomers in search of alien life will take heart in this discovery, which indicates that rocky planets are far more widespread than previously assumed. Kepler-1649c Astronomers using data…
Numerous readers have asked why the sky is blue; contrary to popular belief, it’s not because water reflects it, but due to air molecules. As sunlight passes through the atmosphere it gets scattered by oxygen and nitrogen molecules, creating a condition in which shorter wavelengths (blues) are scattered more than longer wavelengths (reds), creating what…
Sky blue is an ideal hue to help create an inviting space where you can unwind after an exhausting day. This versatile hue works well with numerous hues for an unpretentious yet modern aesthetic. Light traveling through Earth’s atmosphere comes into contact with gas molecules that scatter shorter wavelengths of blue and violet light more…
