pale blue dot
Why do we see only one side of the Moon? You have probably heard references being made to the “dark side” of the Moon – there’s even a Pink Floyd album with that name. But there’s no “dark side” of the moon because our satellite is not illuminated by the Earth, it is illuminated by the Sun. All …
Continue reading “Here’s why we see only one side of the Moon [Tidal locking explained]”
Ancient symbols carved into stone at Göbekli Tepe (an archaeological site in Turkey) tell the story of a big comet impact more than 13,000 years ago, scientists think. The devastating impact triggered a mini ice age that drove many mammals weighing more than 40 kg to extinction. According to an article published by New Scientist, carvings made …
Continue reading “Ancient carvings in Göbekli Tepe show a comet hit Earth 13,000 years ago”
What if we could make a spaceship that is capable of leaving the solar system at the speed of light? How much time would it take to enter interstellar space? Our Solar system is big, and vast, despite it being really small compared to our galaxy, not to mention the complete universe. To put this …
Continue reading “Leaving the Solar System at the Speed of Light [Video]”
Have you ever wondered how big is the Earth compared to other planets? Or other stars? Or even the Universe itself? When it comes to big numbers, very big numbers, the human brain is weak. In fact, our brains cannot deal with really large numbers. That’s why when the subject is Earth, planets, Solar System, …
Continue reading “The Size Of Earth Compared to Other Planets and Stars (and the Universe)”
A beautiful video, once again, from Michael Stevens, titled “How Earth Moves”. Michael explains many concepts, including “sub-solar point”, “sidereal day vs solar day”, or “how Earth moves in space” etc, and he is doing it in a very simplified manner. Enjoy!
What if Mars still had liquid water on its surface and a thick atmosphere filled with clouds, like Earth? How would it look like? Software engineer Kevin Gill of JPL (NASA’s Jet Propulsion Laboratory) wondered this and prepared an image using data from NASA’s Mars Reconnaissance Orbiter (MRO, see notes 1) and Mars Orbiter Laser …
Continue reading “This is how Mars would look if it still had water”
Elon Musk, the founder, CEO, and Lead Designer of the private space travel company SpaceX announced that “they are planning to get humans to Mars in six years”. In order to achieve this goal, Musk revealed the Interplanetary Transport System, which aims to reach Mars with a human crew for the first time in history.
Previously I posted two articles titled “If The Moon Were Only 1 Pixel – A Tediously Accurate Map Of The Solar System“, and “A Scale Model of Solar System Drawn in the Desert and the Result is Stunning“. In these posts, science enthusiasts have shown the scale of the solar system realistically. Since the human brain …
Continue reading “The scale of the Solar System and the first flybys of planets”
Earth is a blue marble in space and the water gives our planet its blue color. About 71 percent of the Earth’s surface is covered with water. There is roughly 326 million cubic miles (1.332 billion cubic kilometers) of water on the Earth’s surface. Almost 97% of that water is salty (ocean water). But where …
Continue reading “Where did Earth’s water come from? [Most recent theories]”
On a dry lake bed in Nevada, the United States, a group of friends built a scale model of the solar system with complete planetary orbits. They first put a Sun with a diameter of 1.5 meters (5 feet) in the center, and then draw the planets’ orbits accordingly.
