Zebras are one of the continent’s most iconic animals. These wild, horse-like creatures inhabit herds across Southern and Eastern Africa and thrive as herd animals. They don’t exhibit selective eating behavior and can graze on various types of greenery without difficulty. Their flexible diet has even enabled them to digest tough cellulose sources. Zebra stripes…
There are planets outside our solar system known as exoplanets that orbit stars beyond our own sun. Proxima Centauri b is the nearest exoplanet to Earth and potential potentially habitable exoplanet, four light years away and orbiting Proxima Centauri star system. Proxima Centauri Astronomers have discovered a planet known as Proxima Centauri b that is…
Kangaroos are one of Australia’s most iconic animals, featured prominently on its coat of arms. But this magnificent animal holds much more mystery and intrigue than meets the eye. Baby kangaroos (joeys) are born alive into their mother’s pouch and live there until it’s time for them to venture forth into life. Kangaroos use powerful…
President Kennedy challenged Americans to land on the moon and explore other planets, and NASA’s Apollo program eventually succeeded in doing just that in 1969. Armstrong and Aldrin emerged from Eagle, their lunar module, onto the lunar surface, to take “one small step for man, one giant leap for mankind”. Their mission had been successful….
Apollo astronauts prepared to embark on their maiden moonwalk. Armstrong carefully eased his EVA backpack through the LM hatch, taking extra care to not snag anything on his way through. At Mission Control, Kranz immediately conducted the final and nerve-wracking roll call, which would determine whether they landed safely or not – it all depended…
Sky color can be determined by various factors; however, all this starts with visible light physics. As sunlight travels through Earth’s atmosphere, its light is scattered by nitrogen and oxygen molecules – with blue wavelengths being particularly dispersed, making the sky appear bluer than it would otherwise. Rayleigh Scattering The sky is blue because light…
At its final stage, a caterpillar searches out a safe place and constructs an encasing called a chrysalis. Though this structure seems motionless at first glance, incredible processes are underway inside. Special butterfly cells transform into the wings, legs and eyes of adult butterflies in this demanding process, which may take between 1-14 months depending…
At the beginning of their lives, butterfly females lay eggs on leaves or stems. These tiny oval or cylindrical eggs come in various colours. Once an egg hatches, a larva (also known as a caterpillar) emerges and begins eating and growing through several growth stages called instars. Eggs A butterfly’s life cycle is one of…
After space programs focused on human flight in low orbit and Mars, Venus was often overlooked. In 2005 however, European Mission Venus Express entered orbit. Venus was confirmed as being an Earth-like world with dry conditions and past oceans; furthermore, there was evidence of past oceanic circulation patterns as well as a double atmospheric vortex…
