The “Seven Wonders of the World”, also known as the “Seven Wonders of the Ancient World”, describes seven great constructions known in the Hellenistic period (see notes 1). None of them but the Great Pyramid of Giza (Kheops Pyramid) do exist today.Continue reading “Seven Wonders of the World”
Mobula is a genus of Batoidea, which is commonly known as rays. Mobula rays (scientific name: Mobula tarapacana) are also known as “flying mobula”, “flying rays”, “eagle rays”, or “devil rays”. Here are 10 amazing Mobula ray facts.Continue reading “10 Amazing Mobula Ray Facts”
In the small islands of New Zealand,
Giant weta is the heaviest insect on Earth. Fully grown species can even be heavier than a mouse or sparrow.
Giant weta is endemic to New Zealand and is an example of island gigantism, which is a biological phenomenon leading to a larger size than their mainland relatives because of their isolation and lack of large predators. A female giant weta filled with eggs can reach up to 70 grams (2.47 oz.) or more!Continue reading “Giant Weta: the heaviest insect on Earth (and 10 amazing facts)”
The farthest spacecraft from Earth, NASA’s Voyager 1 (see notes 1) probe took a photo of planet Earth in 1990, from a record distance of about 6 billion kilometers (3.7 billion miles, 40 AU (see notes 2) from Earth. The photo is known as the Pale Blue Dot. In the photograph, Earth is shown as a fraction of a pixel (0.12 pixel in size) against the vastness of space. It was a part of the Solar System Family Portrait series of images.
The Voyager 1 spacecraft, which had completed its primary mission and was leaving the Solar System, was commanded by NASA to turn its camera around and to take a photograph of Earth across a great expanse of space, at the request of Carl Sagan (see notes 3).
It quickly became the most iconic photo of Earth taken from space.Continue reading “Pale Blue Dot”