I am trying to model surface temperatures on Mars. Coming up with insolation received at the various latitudes was fairly simple, the equations are found at...

There have been recent cosmological experimental disclosures represented in part by the following: The 7Be(n,p)7Li reaction and the Cosmological Lithium...

Various articles about black holes talk about X-rays emitted near the event horizon 'reflecting off the accretion disc'. What kind of material is it that can...

Recently in another newsgroup (nl.wetenschap) the question came up of LIGO's sensitivity compared to the human eye. a) LIGO can (easily) see a source at one...

When fixing catalogue errors one naturally wants to catch them all, but when in so doing you start to encounter new errors caused by your own recent fixes,...

(This and the previous posting are because I've recently found & fixed a few more mis-positioned legacy objects -- there's always more if you look hard enough,...

On the way to building the Million Quasar catalogue, I had the good fortune of email exchanges with Cyril Hazard, a giant of the early quasar discovery days in...

The paper http://adsabs.harvard.edu/abs/1965SvA.....8..854D @ARTICLE { VDashevskiiYZeldovich65a , AUTHOR = "V. M. Dashevskii and...

aIs it possible that the missing mass, the 'dark matter', consists of two generations of burned out stars? These would be short lifetimes, hence large...

The "Tales of Cataloguing" series on this forum were about my trail of data fixes along the way to publishing the "Half Million Quasars Catalogue" (HMQ), 2015...

A question regarding the expansion of the universe: As the Hyperphysics page @ http://hyperphysics.phy-astr.gsu. edu/hbase/Astro/redshf.html shows, the mass...

Just want to mention today's colloquium on the subject. It's available at https://www.youtube.com/watch?v=UUEEIaVSVlE At least I hope that link will...

Oumuamua is leaving us at high speed. Humans try to follow it with the VLT, and they report that the thing... is accelerating. Accelerating? When I first...

I'm now at a cosmology conference: https://indico.cern.ch/event/736594/overview One reason to go to a conference is to hear about interesting things one...

In article , Lawrence Crowell writes: "The scientists carefully...

The Million Quasars (Milliquas) catalogue presents a new release, v5.4 which includes all published quasars to 15 October 2018. The long-term intent is to...

The IAU is considering recommending that the expansion of the universe be referred to as the "Hubble-Lemaitre Law" instead of the "Hubble Law." More details,...

It seems that some university libraries are in the process of getting rid of journals, books, and so on, at least those which are not available electronically....

The article "Missing matter found in the cosmic web" in Nature of 21 June 2018 (See https://www.nature.com/articles/d41586-018-05432-2) Starts with the...

We're not living in the first universe. There were other universes, full of black holes, in other eons before ours, a group of physicists has said. And we...