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comment Time travel possible?
I'm voting to close this question as off-topic because this is not about astronomy and it is so vaguely worded that it isn't clear what the actual question is.
Feb
6
revised Compared with similar stars, does the sun itself have properties that make life on Earth possible?
cleaned up spelling and grammar
Feb
3
reviewed Edit astropy tag wiki
Feb
3
revised astropy wiki description
added 2 characters in body
Feb
3
reviewed Close Astronomy Jokes
Feb
2
reviewed Close are modern flat earthers still believe the earth is flat not round?
Feb
2
reviewed Approve Good textbooks for a descriptive astronomy course
Jan
21
comment 9th planet location?
While this is technically an answer to the question, it is sparse on the things that make good answers (citations, detailed explanations, and math).
Jan
15
reviewed Close Time and velocity
Jan
6
reviewed Close Beginner telescope for my daughter
Dec
8
comment Are we still going to have rainbows if Sun is replaced by another star?
Wouldn't the question of whether or not there is rain be a function of orbital distance? All stars have a "Habitable Zone" - though for some, it would be so close that the planet would be tidally locked.
Nov
19
comment Is there any hard evidence that rogue planets exist?
This is getting a bit chatty - though I am happy to see it's all friendly and on-topic. But please wrap it up.
Oct
30
comment What makes small interferometers useful? Like NIRISS on JWST
I'm pretty sure you are confusing the terminology. Iterferometry works differently in radio than it does in IR/VIS/UV. Also, "high contrast imaging" is pretty much exactly what coronography is.
Oct
10
awarded  Explainer
Oct
9
answered Brightest star of the night sky
Oct
9
revised Brightest star of the night sky
deleted 30 characters in body
Oct
7
comment Gaia: What is the difference between CCDs used for astrometry, photometry, and spectroscopy?
Detectors are designed around high level "science goals". For example, the science goals for HST/COS: en.wikipedia.org/wiki/Cosmic_Origins_Spectrograph#Science_Goals
Oct
7
comment Calculating Postition of ISS / Hubble in space
This is really a question for the Space Exploration site.
Oct
7
reviewed Approve dataset of stars in the milky way galaxy
Oct
5
reviewed Close How to get from the earth to another planet/ the moon? What happens on the way?