Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Galilean Satellites as Sites for Incipient Life, and the Earth as its
  Shelter   Numerous problems connected with an assumption of the life origin on the
Earth do not arise on Galilean satellites. Here, in presence of a practically
non-salt water and of a great deal (~5-10%) of abiogenic organics, a great
diversity of conditions, which are unthinkable for the Earth, were realized
more than once. They were caused by global electrochemical processes in the
magnetic field presence what could entail an absolute enantiomeric synthesis.
The subsequent explosions of the satellites' icy envelopes saturated by the
electrolysis products resulted in appearance of hot massive atmospheres and
warm deep oceans and ejection of the dirty ice fragments (=comet nuclei), what
led to the material exchange with other bodies, etc.

8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
25
The categories of this paper are: patt-sol
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
6
The categories of this paper are: astro-ph