Category Archives: Videos

What is the mass of the Earth? Scientists used neutrinos to measure

While scanning the interior of Earth using neutrinos, a team of scientists from Spain also used these subatomic particles to measure the mass of the Earth. Their result is in agreement with the current best estimate, which was measured using the value of the gravitational constant (G).

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Nasa Publishes the first 8k Video from Space

On November 2, 2018, NASA has published the first 8k Ultra-HD video from the space. The video focuses on science efforts aboard the International Space Station (ISS) and features some important investigations and facilities. It also includes a few amazing Earth views from space.

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Watch: The Milky Way as You’ve Never Seen It Before

In April 2018, the European Space Agency’s Gaia observatory released its second data catalog, which includes the distances to over 1.3 billion stars. In the video published by the American Museum of Natural History, museum’s astrophysicist Jackie Faherty breaks down why this information is so revolutionary and explains how this information is helping scientists and non-scientists alike understand the universe like never before.

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Watch: Apollo 11’s journey to the moon, annotated

On July 20, 1969, at 20:17 UTC, two American astronauts, Apollo 11 mission commander Neil Armstrong and pilot Buzz Aldrin landed the lunar module Eagle on the Moon. It was the first time humans set foot on another planetary body than Earth, making the moon landing probably the most monumental event in history.

Vox.com published a beautiful video highlighting the key moments of the Apollo 11 mission.

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50 Scientific Facts About the Earth

One of the most surprising facts about the Earth is how we easily forget that what an amazing and interesting planet we live on. As Carl Sagan pointed out, “It’s home, it’s us”. It is the only world known planet to support an atmosphere with free oxygen, liquid water on the surface, and, perhaps this is the most important amazing, life. Here are 50 scientific facts about the Earth.

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Mount Etna is sliding into the sea

Mount Etna, Europe’s most active volcano (also one of the most active volcanoes in the world) is sliding into the Ionian Sea at rates of centimeters per year. If part of it falls into the sea, it could create horrible mega-tsunamis that would devastate the eastern Mediterranean shores.

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How NASA Reinvented The Wheel

On August 6, 2012, at 05:17 UTC, NASA has successfully landed a Mini-Cooper-sized rover, Curiosity, on Aeolis Palus in Gale Crater on Mars. The 900-kg rover (899 kg, to be exact, which is 1,982 lbs) is equipped with six 50 cm (20 in) diameter wheels in a rocker-bogie suspension. Notes 1 For the first time in the history of the space exploration, the suspension system also served as landing gear for the vehicle, unlike its smaller predecessors.

Curiosity “soft-landed”  (wheels down) on the surface of Mars. But, even it’s called “soft-landing”, the touchdown speed was 0.6739m/s vertical and 0.044m/s horizontal, which could damage the wheels. Plus, while the rover is moving, the wheels should withstand the substantial damage through the rough Martian surface. That’s why the wheels of the Curiosity rover have been one of the biggest technical difficulties encountered on the mission. Notes 2

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Top 15 Largest Birds in the World

Birds (Aves) range in size and weight from the 5 cm (2 in) and 1.6-2 grams bee hummingbird to the 2.75 m (9 ft) and 104-156 kg (229-344 lbs) ostrich. Here are the top 15 largest bird species in the world (by body weight).

Birds form one of six basic animal groups, with the others being amphibians, fish, invertebrates, mammals and reptiles. They are endothermic vertebrates, characterized by feathers, toothless beaked jaws, a high metabolic rate, a four-chambered heart, and a lightweight but strong skeleton. They reproduce by laying of hard-shelled eggs (eggs fertilize inside the female). The fossil record indicates that birds are the last surviving group of dinosaurs. So, they are also termed avian dinosaurs.

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