Scales from Micro to Macro in the Universe #1
Welcome to a voyage of cosmic proportions! In this exploration, we embark on a thrilling journey through the vastness of the universe, unraveling the mysteries of scales from micro to macro cosmos.
Space & Astronomy
Welcome to the Space and Astronomy category, where you can explore the wonders of the universe and the mysteries of the cosmos. You can browse the following categories to find deeper insights into our universe, explore the fascinating cosmos and learn astronomy:
Solar System, Deep Space, Exoplanets, Space Exploration & History of Astronomy.
For more information about the Night Sky, Celestial Events, Stargazing, Telescopes and Astrophotography tips, visit the Observing category.
If you are also interested in Physics, Chemistry, Earth Sciences, Biology & Evolution, visit the Science & Technology category.
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The Top 10 Things You Might Not Know about Black Holes
Most people who read this article will know that a black hole is the result of a supernova explosion or perhaps the merger of two neutron stars. They will know its gravity is so strong, not even light can escape. But here are a few things you might not know about black holes.
The Voyages of Voyagers
Voyager 2 launched August 20, 1977. It was followed a couple of weeks later by Voyager 1 on September 5, 1977. This same year Jimmy Carter was sworn in as the 39th president of the US and Radio Shack introduced a new TRS-80 personal computer. To put the computing power in perspective, the TRS-80 had…
Are Women Better to Send to Mars than Men?
With the increased attention put on Mars by Elon Musk and NASA, there is finally some hope that humans may visit the red planet within 10 years. Will we send men or women? Missions to Mars 55 missions have been sent to Mars. Due to the Mars Curse perhaps, only 53% have been successful (6…
Why is Point Nemo the Graveyard for Satellites?
Spacejunk The skies above our heads are getting crowded. While there are 2666 active satellites as of April 1 2020, it is estimated there are over 900,000 derelict satellites, rocket bodies and other objects able to be tracked. The US Space Surveillance Network estimates there are over 128 million other pieces under 1 cm like…
The Anatomy of a Brown Dwarf
Too large to be planets and too small to be stars, brown dwarfs are the Goldilocks of objects that fall somewhere in the middle – within the range of 13 to 80 Jupiter masses (MJ).
The Shape of the Milky Way Is Not What You Think.
For many years we have known the Milky Way is a spiral galaxy. But in 2004 data from the Spitzer Space Telescope showed this is not your ordinary spiral.
What Types of Stars are Best to Host Life?
Let’s start with the unfair assumption that we’re only considering life as we know it, which requires water. It’s quite possible there are many other types of life, but those would be speculative, and this discussion will focus on life as we understand it today. We’ll further assume life is most likely to be found…
Space Debris: Wall-E’s Future is Real
Beyond similarities to a Pixar animated film, this image tells a compelling story: environmental sustainability is not contained to just Earth. Debris and man-made wastage can be seen everywhere, including environments such as space.
What Types of Asteorids Have the Risk of Hitting Earth?
We all know a large asteroid impact likely caused the demise of the dinosaurs about 65 million years ago. And relatively recent impacts like the 2013 Chelyabinsk incident can cause widespread damage. But there are also countless other small objects that do nothing more than make a pretty “falling star” in the night sky. How…
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