... in the Universe 235-242. 19 Wetherill, G.W. (1994) Possible Consequences of “Jupiters” in Planetary Systems, Astrophysics and Space Science 212: 23-32 20 Levison, H.F., L. Dones, and M.J. Duncan (2001) The origin of Halley-type comets: Probing the...
... total number of electrons the signal has traversed in the diffuse plasma that fills interstellar and intergalactic space, called the dispersion measure. This smearing of the radio signal due to electrons in the cosmic medium is analogous...
...visiting an Earth-like world moved from the realm of science fiction to a tantalising possibility. In the Summer issue... a few tens of tonnes, real astronauts on the International Space Station require approximately 1.8 kg of food and packaging per day...
... search As with many revelations in the history of science, what was once considered a valid theoretical prediction has...same abiogenesis event), and they (or we) traversed interstellar space on meteorites. The second possibility is that they originate...
..., a 10-metre radio telescope launched by the Russian space agency into a highly elliptical Earth orbit. This collaboration...amazing scientific legacy. Its unique place in the history of science as the world’s largest radio telescope and the most ...
... ‘Small’-class mission implemented in the Cosmic Vision 2015–25 programme, the current planning cycle for ESA's space science missions, and the first mission in the programme overall to be launched. As a Small-class mission with a relatively short...