Marco's Blog

A.(not foolproof way) The way that I have been taught is via "the literature" in short, but essentially, if the theory is backed u...

1. No magic or omnipotence I am not going to discuss a point if a god (or anything omnipotent or magical or capable of breaking the laws of...

Most analysis on why Philae "bounced" on the surface of 67P focus on the various failures of the legs, jet, screws and hooks which...

Haumea has been found to be elongated, with two moons, a ring, and not in hydrostatic equilibrium but rotating fast enough that centrifugal ...

This post is to demonstrate that the conditions for CB via collision require highly balanced rotational and translational components in two ...

In this first case as pictured below, an ice skater takes advantage of the conservation of angular momentum to increase rotational velocity...

It is well known that a figure skater takes advantage of the conservation of angular momentum to achieve incredible speeds of rotation by...

The 67P C-P change concerned is documented by the ESA here  http://sci.esa.int/rosetta/58915-comet-changes-new-fracture-and-boulder-movement...

With regards to liquid water on comets, my thoughts conclude that although evidence is circumstantial in the terms of supposed solar system ...

As suggested in a recent peer reviewed paper: http://www.nature.com/nature/journal/v534/n7607/full/nature17670.html Hirabayashi et al Stress...

This is an extension of the changes noted in this post: http://marcoparigi.blogspot.com.au/2016/06/more-on-rockfall-area.html And http://mar...

Some aspects of cometary science of 67P are more critical than others regarding accuracy. This is because measurements, maps, feature identi...

Before and after perihelion images are a great way to verify theories about the connection between outbursts/outgassing...

Following is an image of Anuket taken well before perihelion in 2014 Note the triangle of boulders and the shortish shadows. Also a...