"Interstellar Travel Could Be Possible Even Without" Topic

…Spaceships, Scientist Says

"In about 5 billion years, the Sun will leave the main sequence and become a red giant. It'll expand and transform into a glowering, malevolent ball and consume and destroy Mercury, Venus, Earth, and probably Mars.

Can humanity survive the Sun's red giant phase? Extraterrestrial Civilizations (ETCs) may have already faced this existential threat.

Could they have survived it by migrating to another star system without the use of spaceships?…"

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Armand

There may be life on Earth in 5 billion years. After all, there was life on Earth 5 billion years ago. I expect that whatever lives on Earth 5 billion years from now will be as different from us as we are to the life forms of 5 billion years ago.

So I wish good luck to whatever is living on Earth then.

Well Tango got this in right category, it is utter drivel, masquerading as science. But author does have an MS in Physics and works for Houston Community College, so everything she says must be science, at least to the editors at the esteemed Universe Today scentific journal. I'm probably being too snarky about this, wild nonsensical conjecture is the inspiration for fun science fiction.

Probably important to append clarifying info: the author of the article is apparently not the Irina Romanovskaya who is a rather attractive artist in St Petersburg that paints portraits of famous people like Vlad Putin with her breasts. And that should inspire a minor flurry of googling.

NASA says Earth formed around 4.5 billion years ago, and life developed about 3.8 billion years ago. Earth will be too hot for life to exist well before its engulfed by the sun – in about 2 billion years. I don't think I'm going to lose any sleep over it.

(smile)

Armand

We will have used up all the easily obtained ore long before then. No bauxite = no aluminum, and so on and so forth.

We either learn to leave somehow or everything we have done was in vain and was for nought.