Christa McAuliffe was America’s first schoolteacher to travel into space. On Jan. 28, 1986, as the space shuttle Challenger lifted off for orbit 73 seconds later, its crew cheered loudly when it suddenly disintegrated and exploded in fiery destruction. This tragedy fundamentally altered NASA’s space operations; it ended plans to send civilians as passengers into […]
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At sea, in a faraway corner of the Pacific Ocean lies an extraordinary graveyard of spacecraft known as “The Spacecraft Cemetery”. Here can be found hundreds of decommissioned satellites and other spacecraft that were carefully guided here once their lifespans ended. To minimize the chance that debris might accidentally land in an urban center, this
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Most space missions require rockets to be launched at high speeds to overcome Earth’s gravity and reach their destination. All launch vehicles, with the exception of partially reusable space shuttles, are expendable launch vehicles (ELV). Propellers make up the bulk of a rocket’s mass; fuel and oxidizer must combine to power its flight upward. What
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Discover fascinating facts about Mars with this engaging worksheet! Including reading passage, questions, a word search game and even an unmistakable hidden message! Mars, the fourth planet from the Sun, can be easily seen as a reddish light point in the night sky. This planet features mountains, valleys, and polar ice caps with its thin
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Flowers are beautiful, fragrant, and draw pollinators insects to pollinate them, serving also to disseminate seeds across their environment. Pollen grains that land on the stigmas of other flowers of the same species germinate to form a tube that descends through style and into ovary where male reproductive cells, known as gametes, unite with female
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France is well known for its sophisticated culture and world-class education system. However, France also boasts some unusual customs and stories that may come as a shock. Name your pig Napoleon was once illegal! Additionally, France boasts 12 time zones and may come as a shocker! 1. The longest book in the world is written
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Voyager spacecraft are our greatest ambassadors into space. Now exploring beyond our solar system’s boundaries, both probes have enough fuel left over to continue transmitting scientific information until 2025. The Voyagers were designed to take advantage of an unlikely alignment among outer planets that enabled them to study two, four and eventually all their unique
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Russia is an enormous nation filled with fascinating facts that may surprise you, from its cold climate to its world-famous vodka production, there are so many fascinating aspects of life in Russia that will catch your attention. Mikhail Gorbachev introduced liberal policies such as glasnost and perestroika during his administration, leading ultimately to the dissolution
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The insect class encompasses an extremely diverse group. They all share some similarities: compound eyes, three pairs of legs and an exoskeleton to protect them. Cockroaches can live without heads, while flies have sound-sensitive membranes on their feet, while Double Drummer Cicadas have the unique ability to predict temperatures by counting their chirps per minute
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