As the 19th century came to a close, physicists were feeling pretty satisfied with the state of their science. The great edifice of physical theory seemed complete. A few minor experiments remained to verify everything. Little did those...

Scientists have found at least three cycles in nature that can be traced back to the alignment of the planets. And while they won’t tell you anything about your love life or personality, by studying them, we can learn about our planet’s...

Several companies are already working on plans to mine space objects, but who owns what in space?

Every star, black hole, human being, smartphone and atom are all constantly pulling on each other due to one force: gravity. So why don’t we feel pulled in billions of different directions? And is there anywhere in the universe where...

How and why scientists are searching for Planet X / Planet Nine / Planet 9.

Asteroids are small, rocky objects that orbit the sun, just like the rest of the planets and celestial bodies in our solar system. Although asteroids are present throughout the solar system, most of them live in the asteroid belt—a...

Multiverse theory suggests that our universe, which consists of billions and billions of planets, stars and galaxies and extends out tens of billions of light-years, may not be the only universe that exists. There could be another...

Solar and lunar eclipses are celestial phenomena that occur when the sun, moon and Earth align in a way that either the moon casts a shadow on Earth or the latter casts a shadow on the moon. So what are the similarities and differences...

While flying over a metropolitan or densely populated area at night, its likely that you wont see stars from the airplane window. This is because the excessive artificial lighting (i.e., light pollution) of the city can light up the sky...

The study of the Universe as a whole, rather than specific stars or celestial bodies.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...

The branch of science that studies the physical universe beyond Earth's atmosphere.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...

Did you know that navigating by using the Moon, Sun, and other stars is called celestial navigation?
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A Twig Tidbit Film - Did you know? A fascinating...

The Fermi Paradox refers to the apparent contradiction between the high probability of extraterrestrial life in the universe and the lack of evidence or contact with such civilizations. Named after physicist Enrico Fermi, the paradox...

By the end of this learning object, the student will be able to: Identify the Celestial body and the Galaxy as the universe unit.14440

The Big Idea of planet discovery and the exploration of distant galaxies have taken a new direction in recent times. The James Wentz Space Telescope, or the JWST, is a large, infra-red optimized, space-based telescope that will be...

While flying over a metropolitan or densely populated area at night, it’s likely that you won’t see stars from the airplane window. This is because the excessive artificial lighting (i.e., light pollution) of the city can light up the...

In this video you'll find meteor facts , Asteroid facts , and comet facts . Brought to you by KLT. Don't forget to sing along!

Why did Neil Armstrong and Buzz Aldrin plant a flag on the moon? Moreover, why do astronauts and space agencies from across the world continually send their nations' flags to space? Today, Danielle traces the history and symbolism of...

The Solar System identifies the solar system including the sun and all celestial bodies that orbit the sun.

Asteroids are small, rocky objects that orbit the sun, just like the rest of the planets and celestial bodies in our solar system. Although asteroids are present throughout the solar system, most of them live in the asteroid belt—a...

Multiverse theory suggests that our universe, which consists of billions and billions of planets, stars and galaxies and extends out tens of billions of light-years, may not be the only universe that exists. There could be another...

This video is a lecture on the Hertzsprung Russell diagram, which is used to understand the brightness and temperature of stars. The narrator explains the classification system of apparent magnitude and how it is used to compare the...

This video provides a historical overview of the space race between the United States and the Soviet Union during the Cold War. It highlights how both countries competed to achieve milestones in space exploration, such as launching...

Since ancient times, humans have be using the stars to navigate. Learn about the earliest star charts and how modern star charts are used.