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submitted 1 day ago by neme@lemm.ee to c/astronomy@mander.xyz
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[-] pageflight@lemmy.world 5 points 1 day ago

20ly away. I guess that does qualify as "nearby," astronomically.

[-] themoken@startrek.website 5 points 23 hours ago

In a certain way, it does feel close. We can't figure out how to go faster than light, but we could theoretically get to a significant fraction of c and 20 years isn't such a long time to plan for in terms of getting a probe there to start relaying messages that take 20 years to get back.

I mean, it's the span of a career, but people could conceivably work on the launch and live to see it return data.

[-] LordTrychon@startrek.website 2 points 22 hours ago

Breakthrough Starshot project is working towards accelerating a probe close to 20% of C. That's a significant fraction of C in these terms.

Even if we could get to .25 C, that would be 80 years for the probe to get there, and then 20 more for the data to come back.

But yes, that is still VERY close.

[-] rockSlayer@lemmy.world 12 points 1 day ago

That orbit is better described as passing through the habitable zone. How this would affect potential life, I have no clue, but it certainly isn't a stable orbit in the habitable zone like earth or mars

[-] knightly@pawb.social 5 points 23 hours ago

Another article said it had 6.6 times earth's mass, and now I'm really curious about the diameter and atmospheric composition. It sounds like it'd be a big Venus that alternates between freezing and boiling.

[-] rockSlayer@lemmy.world 4 points 23 hours ago* (last edited 23 hours ago)

It sounds like an extremely interesting planet for sure, I hope they point Webb at it to get an atmospheric spectral analysis soon!

[-] SweetCitrusBuzz@beehaw.org 5 points 1 day ago* (last edited 1 day ago)

Absolutely not until lifeforms on this planet have learned to look after this one first.

[-] WalkingOnEggshells@beehaw.org 5 points 1 day ago

My life for Super Earth!

this post was submitted on 28 Jan 2025
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Astronomy

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