User Ritesh Singh

5 votes

1 answer

415 views

Why is the Cosmic Microwave Background evidence of a hotter, denser early Universe?

asked Feb 4, 2020 at 7:53

3 votes

5 answers

1k views

Why is sun's photosphere a million times less dense than air at the surface of the Earth?

asked Feb 19, 2018 at 17:33

3 votes

1 answer

196 views

Why do we expect Type Ia Supernovae to be brighter in a decelerating Universe than what has been observed?

asked Oct 19, 2019 at 18:09

2 votes

1 answer

240 views

At what cosmological redshift $z$, does the recession speed equal the speed of light? How is it calculated?

asked Dec 7, 2019 at 23:04

2 votes

2 answers

212 views

Why does the Supernova 2006cm give a very different value for the Hubble constant? Why doesn't it increase error bars for the Hubble constant?

asked Dec 8, 2019 at 1:20

2 votes

1 answer

80 views

What secondary and tertiary conclusions can be drawn from the temperature characteristics of lunar soil sent by ISRO Chandrayaan 3?

asked Aug 27, 2023 at 15:10

1 vote

1 answer

195 views

Does the critical density of the Universe also include Dark Energy?

asked Aug 27, 2020 at 19:16

1 vote

1 answer

222 views

What error bar / confidence level is generally reported in galaxy distances?

asked Aug 28, 2020 at 20:32

0 votes

1 answer

89 views

What does G/IG signify in the galaxy names ESO 012- G 014 and ESO 293-IG 034?

asked May 20, 2020 at 10:12

0 votes

1 answer

152 views

Why is constant velocity drift not an accepted explanation of Hubble expansion?

asked Jan 7, 2020 at 15:45

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10 Questions

Why is the Cosmic Microwave Background evidence of a hotter, denser early Universe?

Why is sun's photosphere a million times less dense than air at the surface of the Earth?

Why do we expect Type Ia Supernovae to be brighter in a decelerating Universe than what has been observed?

At what cosmological redshift $z$, does the recession speed equal the speed of light? How is it calculated?

Why does the Supernova 2006cm give a very different value for the Hubble constant? Why doesn't it increase error bars for the Hubble constant?

What secondary and tertiary conclusions can be drawn from the temperature characteristics of lunar soil sent by ISRO Chandrayaan 3?

Does the critical density of the Universe also include Dark Energy?

What error bar / confidence level is generally reported in galaxy distances?

What does G/IG signify in the galaxy names ESO 012- G 014 and ESO 293-IG 034?

Why is constant velocity drift not an accepted explanation of Hubble expansion?