As sunlight passes through the atmosphere, its energy becomes scattered by air molecules – this scattering effect being especially evident for blue light. As such, very little of the direct blue light of the sun reaches your eyes directly, leading to pale skies as you climb higher into the atmosphere. Sunlight As the Sun shines…
On January 28th 1986, Challenger made history when it launched into space. Christa McAuliffe qualified for her mission through NASA’s Teacher in Space program and was chosen as part of its crew. Challenger and its nine successful voyages prior to its demise marked many important milestones. Lessons learned from its flights led to the design…
Explore Earth’s continuous cycle of water movement with these books, activities and classroom lessons on the water cycle. Readers of this straightforward book discover that water evaporates into clouds, then condenses to form rain and snowfall, with this precipitation coming from oceans, seas, lakes, ponds and rivers as their source. Clouds Cloud formation is an…
Sending humans to Mars would be an immense financial and logistical endeavor, taking two to three years on average and necessitating constant supplies of food, water and rocket fuel. Spirit and Opportunity made history on Mars by outlasting expectations, serving over six years on each rover and discovering crucial information that helped scientists better comprehend…
Neil Armstrong and Buzz Aldrin made history in 1969 with their lunar landing of their LM-5 spacecraft on the moon, taking pictures, depositing rock samples on lunar surfaces, and installing scientific experiments which still send back data today. An independent researcher recently realized that it is possible that the Lunar Module’s ascent stage may not…
Seeds contain everything needed for new plant life to take root and flourish, including wind, water and animal dispersion methods. When they find favorable environments they will germinate into new life forms. Once a tree reaches maturity, it begins producing flowers which are pollinated either by animals or wind and eventually turn into fruit that…
The Apollo missions were a series of space flights that culminates in the first human landing on the Moon on July 20, 1969. Around 650 million viewers worldwide witnessed Neil Armstrong and Edwin “Buzz” Aldrin take their steps onto its surface for this momentous occasion. After departing Columbia, the astronauts entered Eagle and conducted three…
If asked by an average person which planet was closest to Earth, most would likely say Venus. After all, Venus comes before Mars chronologically and has an orbit that aligns it closely with most other planets in our Solar System. But is that true? A recent study suggests Mercury as being closer than all the…
Oliver Scott of Wombarra Our atmosphere interacts with sunlight to produce blue hued skies on Earth. Blue light scatters more readily than other colours; thus creating its distinct blue color. Sunlight contains all of the colors of the rainbow, which we can see when passing it through a prism. But when the sun is low…
