The World

The Dyson Sphere Theory

Okay, I’m not huge on wild conspiracy theories. But I like that some scientists think it is at least plausible that highly advanced aliens are building  megastructures around stars to capture their energy like a battery. 🀯 The cool thing is there would actually be a good reason for aliens to do this if they were capable enough. πŸŒŸπŸ”‹

I’m not saying I believe it, but I love that this is a theoretical possibility. And it’s influencing SETI.

πŸ‘‰ Missing stars could point to alien civilizations, scientists say

The idea here is that a very advanced alien civilization may be able to construct a hypothetical megastructure called a Dyson sphere that completely encompasses a star in order to capture a large portion of its energy. Think of it as converting a star into a gargantuan battery.

The World

Roadmap to Alpha Centauri

With the Voyager space sailing beyond out solar system, this article looks at some ways we could send people to Alpha Centauri.

πŸ‘‰ Roadmap to Alpha Centauri

This article is a complete mindmelt 🀯: ion drives, solar sails, nuclear rockets,  foraging for dark matter.

I don’t really understand this stuff, but I do like the idea that people could potentially fly around the universe and find a new home. Especially considering the black holes out there.

The World

Don’t Panic! The Universe Expanding Faster Than Expected.

When things seem a little “off”, you might be right. Not only is the universe expanding, but it is expanding faster than we (i.e. astrophysicists) thought. But don’t worry, we’re only off by about 9%.

Look for the word “megaparsec” in this article. It means 3.26 million light years. πŸš—πŸ’«πŸ€―

An existential nightmare

Scary stuff…

If dark energy remains constant, everything outside our galaxy eventually will be moving away from us faster than the speed of light, and will no longer be visible. The universe will become lifeless and utterly dark.

As the universe expands, the push from phantom energy would grow without bounds, eventually overcoming gravity and tearing apart first Earth, then atoms.

But just a theory so far

Let’s science the sh*t out of this…

Two space missions β€” the European Space Agency’s Euclid and NASA’s Wfirst β€” have been designed to study dark energy and hopefully deliver definitive answers in the coming decade. The fate of the universe is at stake.