142 citations · 315 across the 3 of their papers we have counts for
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Natural Transfer of Viable Microbes in Space from Planets in the Extra-Solar Systems to a Planet in our Solar System and Vice-Versa
Mauri Valtonen, Pasi Nurmi, Jia-Qing Zheng +7
We investigate whether it is possible that viable microbes could have been transported to Earth from the planets in extra-solar systems by means of natural vehicles such as ejecta…
Injection of Oort Cloud Comets: The Fundamental Role of Stellar Perturbations
H. Rickman, M. Fouchard, Ch. Froeschlé +1
We present Monte Carlo simulations of the dynamical evolution of the Oort cloud over the age of the Solar System, using an initial sample of one million test comets without any clo…
Molecular oxygen in the rho Ophiuchi cloud
B. Larsson, R. Liseau, L. Pagani +56
Molecular oxygen, O2 has been expected historically to be an abundant component of the chemical species in molecular clouds and, as such, an important coolant of the dense interste…