Ritesh Singh's user avatar
Ritesh Singh's user avatar
Ritesh Singh's user avatar
Ritesh Singh
  • Member for 6 years, 8 months
  • Last seen this week
  • Noida, Uttar Pradesh, India
5 votes
1 answer
400 views

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

3 votes
5 answers
1k views

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

3 votes
1 answer
173 views

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

2 votes
1 answer
223 views

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

2 votes
2 answers
203 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?

2 votes
1 answer
71 views

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

1 vote
1 answer
135 views

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

1 vote
1 answer
206 views

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

0 votes
1 answer
86 views

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

0 votes
1 answer
145 views

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