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Questions tagged [stars]

The tag has no usage guidance.

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0answers
26 views

Stars properties evolution and the sun [duplicate]

Is it possible that you can touch a star in outer space without getting burned or hurt?
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1answer
49 views

Was that the space station I saw last night? [duplicate]

I was out on my front porch last night around 9pm looking up at the sky and noticed what I first thought was a star in the Eastern sky. It twinkled just a little too much for a star so I thought maybe ...
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1answer
74 views

Is there anything common between all Gliese named stars?

As Gliese 436, and Gliese 581 etc these all are present in different constellations, also they are both at different distances from the Earth and both are discovered by different sources, but why all ...
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1answer
314 views

Why are scientists considering the ETI explanation for Tabby's star?

When Yale astronomer Tabetha Boyajian located star KIC 8462852 ("Tabby’s star"), some U.S. scientists proposed artificial megastructure(s), such as a Dyson sphere/swarm, instead of discussing more ...
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1answer
66 views

Can an Earth like planet support life by building a Dyson Sphere across a White Dwarf? [closed]

(Hypothetical Concept) But is it possible to depend on a white dwarf as our power source? Provided we harness its 99% of energy? Can life be sustained?(If it is possible we can easily colonize an ...
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0answers
82 views

Which one is older light or stars? [closed]

I kind of feel that light is older than stars. But is there any scientific theory or hypothesis on it?
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4answers
2k views

Is it possible to touch stars with our bare hands?

Well I'm new to Space SE and have gone through many questions but I couldn't help but notice that is it even remotely possible that one can touch the stars without burning him/her self ? Is there any ...
6
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1answer
176 views

What determines if a star tracker blends two stars that are close to each other?

If two stars are very close to each other, a star tracker could identify the pair as a single star, with a magnitude and position different from both stars. This obviously impairs the software's ...
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2answers
140 views

Copernican principle based question about ET

As mentioned, I'm following the Copernican principle for this line of questioning. Yes I've considered and read many other possibilities, but this question is for Copernican-style answers ONLY. Your ...
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0answers
51 views

Escape velocity of Alpha Centauri B: What is it? [closed]

So, assume that at one point in the distant future, humanity has a docking facility/military observation post in orbit around the star of Alpha Centauri B for.....well, military purposes, which could ...
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0answers
56 views

how many stars have been recognized? [closed]

I have wanted to ask this question for ever. I realize that the numbers are still ticking up but i just want a number from last year or something.
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1answer
145 views

If a telescope detects death of a star which is 1 million light years away today, doesn't that mean it's dead 1 million years ago? [closed]

I'm guessing as if its an optical reflecting telescope. How in general does NASA and other research centres detect far away bodies? What telescopes do they use, and in general, wouldn't the event be ...
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1answer
343 views

Is there any space objects database? [closed]

I wonder if is there any databse about space objects, giving information about types and may be relative positions of objects in space. I'm asking this because my company aims to develop a software ...