Suppose a normal galaxy like ours. Heavy stars are produced by the galaxy, converting cold gas into black holes or heavy neutron stars. Supernova explosions...

A interesting new development, or potential development, on the dark matter front comes from a new paper by Mike Hawkins, which is in press at MNRAS. Hawkins'...

Recently I asked for recommendations about where one should publish. I want to expand that discussion somewhat. What I DO NOT want to do in this post: ...

In article , Eric Flesch writes: Two new pre-prints with contrasting results are out, kind of...

Pursuant to an old thread, I wonder who can answer this: Let's pretend for a moment that there is no dark matter, but that the gravitational lensing that we...

Gas and dust is able to be detected by its effect on light. Large objects glow from their own light. If intermediate objects were at low temperature would they...

We have no confirmed non-gravitational detection of dark matter either astrophysically or in the laboratory. But that does not mean that we cannot learn...

In Nature of 18 Februari 2016 at page 263 we read: "Surprisingly Ligo's first detection dit not come from a binary neutron star system etc but from two large...

They meet in Mars exploration. Since quite a time, humans are roving the planet, "looking for life". Sadly, I think that this is not the case. Biology has...

For those following important developments in cosmology, I highly recommend the following new paper on confirmed observations of dipole and quadrupole...

Well, there's the official history of the flat universe, and, dare I say it, the real history, which has an important social component. Dates are...

The Gravity B probe has superconducting niobium shells. Are the engineers aware of the J. Tate et al. experiments which found that the mass of the cooper pair...

Everyone Are there any ideas as to Pioneer 10 gravitational analomy as presented in: http://xxx.lanl.gov/abs/gr-qc/0409117 I did a quick calculation based...

Hi, I was just curious about what exactly measurements astromoners made that provided data to those like Kepler to determine the relationship between period...

Hi all, A few days ago I happened across an essay by the late Stephen Jay Gould describing his observations of "ordinary New Yorkers" observing a near total...

On the subject of heresies, as I tuck into a slice of deep-fried Bob Bakker (geologist's joke), I wonder what Halton Arp is up to these days? Still asking...

A paper to appear in a scientific journal is raising eyebrows, claiming a strange red rain may have recently brought cells from space to Earth. (Article in...

Can somebody give a comment on the report, though unpublished, that dark matter may be hot and fast; see for...

In article , "John (Liberty) Bell" writes: Note: the figure of $81 million quoted...

I know that a rigid body's rotational inertia increases as its density decreases (for example, if I stretch my arms out while whirling on a swivel chair, I...