Andromeda Galaxy is the farthest object in the sky that we can see with the naked eye. But if you don’t know where to look, you won’t notice it. But if it were much more brighter, its appearance in the sky would be sensational. The moon is a good reference about what we’d see in the image below:
Continue reading If Andromeda Galaxy were brighter, this is what we’d see
When it comes to big numbers, very big numbers, human brain is weak. In fact, our brains cannot deal with the really large numbers. That’s why when the subject is Earth, planets, Solar System, galaxies, and in general, the Universe, we cannot truly conceptualize the things. A lot of people think we’re “conquering” the space (we are far, far away from that – and maybe we never will), or the “aliens” are regularly visiting Earth, as if it is just an hour’s drive from there. In fact, these people don’t truly understand what are they talking about, how big is the universe, how far the stars are, and how the Earth is a tiny, tiny spot in a vast space we are still striving to understand.
Continue reading The Size Of Earth Compared to Other Planets and Stars (and the Universe)
In 240 BC, the Greek astronomer, geographer, mathematician, music theorist and librarian Eratosthenes of Cyrene (c. 276 BC – c. 195/194 BC) calculated the circumference of the Earth without leaving Egypt. Here’s how:
Continue reading How Eratosthenes calculated the Earth’s circumference
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 the space” etc, and he is doing it in a very simplified manner. Enjoy!
Continue reading How Earth Moves (Video)
We sometimes forget how amazing and interesting place is where we live in. Here are the amazing facts about our planet, Earth. Some of them even may sound fake but in fact they are totally true.
Continue reading 35 Amazing Facts About Earth
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)(1) and Mars Orbiter Laser Altimeter (MOLA)(2). The result is stunning!
Continue reading How Mars would look if it still had water
Proxima Centauri b, the Earth-like planet orbiting the red dwarf Proxima Centauri may have oceans, scientists say. The planet was discovered in August 2016 and caused excitement because it’s in the habitable zone of its star, and it’s rocky. And it’s in the Alpha Centauri, the closest star system to us!
Continue reading Proxima Centauri b May Have Oceans
Elon Mask, 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.
Continue reading SpaceX unveils the Interplanetary Transport System (a spaceship and rocket to colonize Mars) – video
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“. Since the human brain cannot deal with the really large numbers, these articles provide an amazing way to understand how big actually our Solar System is.
Now, I decided to put the Solar System into scale as an infographic. You can see a scaled Solar System below, the planets’ distances from the Sun, and the first flybys over them. Plus some statistics about the planets and our home planet, the Earth.
Continue reading Scale of the Solar System (and the first flybys of planets)
The Expedition 49* (the 49th expedition to the International Space Station) crew members (Anatoli Ivanishin, Kathleen Rubins and Takuya Onishi) has taken amazing photos of Earth. Four of them has been published on ISS facebook page. They are really, really beautiful and awe-inspiring!
Continue reading Amazing Earth photos from ISS