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Aug
24
accepted What is the standard reference point for measuring speed?
Aug
24
revised What is the standard reference point for measuring speed?
[Edit removed during grace period]
Aug
23
revised What is the standard reference point for measuring speed?
[Edit removed during grace period]
Aug
14
awarded  Popular Question
Jun
23
awarded  Notable Question
May
28
awarded  Notable Question
May
10
awarded  Nice Question
Apr
22
revised How can we derive photometric redshift?
deleted 15 characters in body; edited title
Apr
21
reviewed Close Could there be a closer star to Earth than the Alpha Centauri triple star system, excluding the Sun?
Apr
21
revised What's the difference between grism and grating?
deleted 5 characters in body; edited title
Apr
20
comment Circular formation around the moon
Do you have an image handy of what you're talking about?
Apr
20
revised Are black holes solely responsible for hyper velocity stars?
edited title
Apr
11
awarded  Guru
Mar
24
reviewed Close Does our sun/solar system orbit around any other celestial objects?
Mar
24
reviewed Close axial tilt of uranus
Mar
13
accepted What is the current estimation for how much time the Sun will function properly?
Feb
22
awarded  Enlightened
Feb
11
awarded  Notable Question
Jan
22
awarded  Popular Question
Dec
21
awarded  Good Question