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Space is one vast, and amazingly fascinating topic. In this section we hope to share some of of the more interesting bits about space exploration, from intriguing technicalities to fascinating scientific phenomena and discoveries.

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Spaceflight

Thermal Control in Space: Heat Sources

Do you remember what we talked about in the Article Thermal Control in Space? In this article we made a general introduction to thermal control, applied not only in space but in several fields. However, now we go a little step forward by describing the main heat...

Cubesat, the new way to launch a satellite.

Nowadays, space travel is on the news every day, with new missions, new launches, and new astronauts working there. What if I told you that there is a way that students can build and put their own satellites in orbit? Does that seem incredible, an unaffordable luxury...

Thermal Control in Space

Space, many times defined as the last boundary for human beings. Is that true? Are we going to stay on Earth forever? Is the interplanetary spaceflight just a dream? Not at all, but almost. As you may know, it is commonly accepted that space starts above 100 km of...

What does it really take to be an astronaut?

Imagine, for a moment, that you are an astronaut at the International Space Station (ISS). You are working on some wires during an Extravehicular Activity (EVA, also known as spacewalk), when you notice something strange: the feeling of liquid accumulating around your...

Rocketry

Propulsion Technologies II – Electric Propulsion

As we have seen, there is a limit on the ejection speed achievable by chemical propulsion rockets. But electric propulsion can overcome this limitation, reaching ejection speeds in excess of 50 km/s...

A tailor-made thruster

Space propulsion systems can fulfill numerous different roles. Depending on them and on the environment they will operate in, there will be a huge difference in priorities in thruster design...

Aviation

The scientists: the day aviation changed

From George Cayley's time, the importance of aerodynamics for airplane design was well understood. However, it took a time (and some remarkable people) for the theoretical side of aerodynamics to catch up with progress in aviation and start providing reliable predictions, that would allow much faster design optimization...

Not flying like birds: the day aviation changed

Flying has always been a dream for humanity. It was always associated with freedom, bringing the possibility to go wherever wanted, regardless of terrain and conditions. After all, one of the most known myths about flight actually talks about freedom (and its risks):...

Science

Wavelengths – seeing the unseen from space

Every substance interacts with light in a different way. Knowing these interactions allows us to figure out of what are composed the materials we are looking at. Thus, in a visible light spectrum chlorophyll in plants absorbs red and blue light while...

Cooking your own star

Stars are the bright spots of our lives, this recipe gives you the basic astrophysics you need to cook one yourself. Some will last longer than the Universe is old, whereas others are short-lived, ferocious beasts.

Realists vs Antirealists: Realists

In the borders between Modern Physics and Philosophy, the discussion about the realism, conducted by Einstein, continues. Is there a real antirealism in Modern Physics?