Are we alone?

Are we alone?

We just don't know. There are trillions of exoplanets in the universe and it will be extraordinary if we are alone. Extraterrestrials (E.T.s) or just aliens (only if there are) can be microbial or intelligent.

Recipe for Life

Living organisms contain relatively large amounts of oxygen, carbon,hydrogen, nitrogen, and sulfur (these five elements are known as the bulk elements), along with sodium,magnesium, pota-ssium, calcium, chlorine, and phosphorus (these six elements are known as macrominerals).

Source: https://chem.libretexts.org/Textbook_Maps/General_Chemistry_Textbook_Maps/Map%3A_Chemistry_(Averill_and_Eldredge)/01%3A_Introduction_to_Chemistry/1.8_Essential_Elements_for_Life

Is space infinite?

Is space infinite?

No, it isn't. I named this blog "Beyond Infinite Space" right? Don't just fall into it because space isn't infinite but it is expanding as told in my last post. We can call it infinite literarily but scientifically it isn't.

Infinity is about things which never end. Sometimes, it is also written ${\displaystyle \infty }$. Infinity means many different things, depending on when it is used.

Got it?  Sorry I didn't get ant images related to infinity except this:

  ∞

And this:

That's made by me!! How's it?

How big is the universe?

How big is the universe?

The Universe is very big; in fact, it is bigger than anything else we know about. We can see that it exists as far about. 13.7 billion light years from us. We also know there is more beyond the edge of the observable Universe but we don't know how much. The Universe is expanding all the time it is bigger now than when you started reading this post!

Life in the Slow Lane.

LIFE IN THE SLOW LANE

Did you hear the one about the astronaut who got younger on his space flight? While this sounds like a joke, it also happens to be true! Time slows down when traveling at great speed in space, so space travelers age more slowly than they do on Earth.

Albert Einstein figured this out n 1905, long before we started flying in space. Einstein knew the speed of light never changes: it s constant. This means light always travels at 186,000 miles (299,329 km) per second. Time, however, is relative, said Einstein. It can change. It changes according to the speed of what is measuring The faster the speed, the slower time passes. In fact, a very accurate clock aboard a space shuttle was measured after its return to it lost 0.000,000,000,295 seconds or each second of the tr Now, this is a very tiny amount lose, it proved Einstein's theory. If the shuttle had been traveling near he of had been gone for several years, the time loss would have been bigger. So, if you went on a very long space trip and spacecraft could travel close to 186,000 miles per second, you'd younger than your current same-age friends when you returned to Earth! Isn't that something?