User Arjun

13 votes

Did the Sun's light always peak in the green wavelengths?

answered Sep 7 at 11:31

13 votes

Accepted

Why can't a half-illuminated planet support life at all?

answered Oct 5 at 11:07

8 votes

Why is Uranus called a "green planet"?

answered Sep 17 at 6:43

5 votes

Size of the Unobservable Universe

answered Sep 7 at 15:54

4 votes

Accepted

When did Venus get as hot as it is now?

answered Sep 20 at 11:19

3 votes

Accepted

Is Venus in our sun's habitable zone?

answered Sep 22 at 11:48

3 votes

Is there a (proposed) name for Coatlicue's progenitor?

answered Aug 28 at 12:09

3 votes

On the "periodic" lightcurves of Active Galactic Nuclei

answered Aug 7 at 15:15

3 votes

Trying to identify what I saw in the sky

answered Aug 12 at 10:33

2 votes

ER=EPR and information fuelling cosmic expansion

answered Aug 27 at 6:37

2 votes

Why isn't a month 28 days?

answered Aug 18 at 13:02

2 votes

How do we know the Moon was much closer than it is now?

answered Aug 6 at 13:26

2 votes

Accepted

Cooling the early earth

answered Sep 5 at 17:02

2 votes

Definition of a moon in an exam: "A satellite of a planet that doesn't produce light itself but reflects it" - is there relevance for the emphasis?

answered Oct 31 at 14:49

1 vote

Accepted

Identify the bright object to the left of the moon

answered Sep 30 at 13:27

1 vote

How accurate is astronomical spectroscopy?

answered Sep 18 at 7:05

1 vote

Why is the Milky Way today about the same diameter as the visible universe was when recombination happened 378000 years after the Big Bang?

answered Sep 19 at 16:11

1 vote

Could a super Jovian planet have mild radiation belts?

answered Sep 14 at 9:22

1 vote

Do high power radar astronomers try to avoid beaming power at (at least some) artificial satellites as they pass overhead?

answered Aug 19 at 9:27

1 vote

Galaxies contracting

answered Aug 20 at 5:00

1 vote

Accepted

Do researchers create their own convolutional neural network models for their work or do they use existing ones (e.g. YOLO, detectron2, etc)

answered Aug 20 at 6:25

1 vote

Why are WIMP dark matter particles, if Majorana-like, expected to annihilate upon contact? But not neutrinos?

answered Aug 27 at 8:10

1 vote

Why are most cosmic rays positively charged? Has anyone figured this out yet?

answered Aug 17 at 11:56

1 vote

Could a super massive black hole actually be primordial black hole in disguise?

answered Jun 22 at 12:34

1 vote

Accepted

Could macroscopic primordial black holes have created metals shortly after the big bang?

answered Jul 2 at 9:45

1 vote

What does the rate the Moon moves away from Earth depend on?

answered Jul 6 at 12:58

0 votes

Is there a link between a star's metallicity and the availability of chemical elements in its system?

answered Jul 12 at 16:57

0 votes

Accepted

Why do we say that gravitational waves travel at the speed of light, when they can escape a black hole and light cannot?

answered Aug 4 at 16:21

0 votes

Is there a Doppler shift of gravity waves?

answered Aug 6 at 10:15

0 votes

Is the object mass distribution different for galaxies of different diameter?

answered Aug 28 at 12:20

Stack Exchange Network

36 Answers

Did the Sun's light always peak in the green wavelengths?

Why can't a half-illuminated planet support life at all?

Why is Uranus called a "green planet"?

Size of the Unobservable Universe

When did Venus get as hot as it is now?

Is Venus in our sun's habitable zone?

Is there a (proposed) name for Coatlicue's progenitor?

On the "periodic" lightcurves of Active Galactic Nuclei

Trying to identify what I saw in the sky

ER=EPR and information fuelling cosmic expansion

Why isn't a month 28 days?

How do we know the Moon was much closer than it is now?

Cooling the early earth

Definition of a moon in an exam: "A satellite of a planet that doesn't produce light itself but reflects it" - is there relevance for the emphasis?

Identify the bright object to the left of the moon

How accurate is astronomical spectroscopy?

Why is the Milky Way today about the same diameter as the visible universe was when recombination happened 378000 years after the Big Bang?

Could a super Jovian planet have mild radiation belts?

Do high power radar astronomers try to avoid beaming power at (at least some) artificial satellites as they pass overhead?

Galaxies contracting

Do researchers create their own convolutional neural network models for their work or do they use existing ones (e.g. YOLO, detectron2, etc)

Why are WIMP dark matter particles, if Majorana-like, expected to annihilate upon contact? But not neutrinos?

Why are most cosmic rays positively charged? Has anyone figured this out yet?

Could a super massive black hole actually be primordial black hole in disguise?

Could macroscopic primordial black holes have created metals shortly after the big bang?

What does the rate the Moon moves away from Earth depend on?

Is there a link between a star's metallicity and the availability of chemical elements in its system?

Why do we say that gravitational waves travel at the speed of light, when they can escape a black hole and light cannot?

Is there a Doppler shift of gravity waves?

Is the object mass distribution different for galaxies of different diameter?