cosmic х- (gamma-) ray line emission
61Nobel Prizes — ▪ 2009 Introduction Prize for Peace The 2008 Nobel Prize for Peace was awarded to Martti Ahtisaari, former president (1994–2000) of Finland, for his work over more than 30 years in settling international disputes, many involving ethnic,… …
62Beta decay — Nuclear physics Radioactive decay Nuclear fission Nuclear fusion Classical decays …
63Observational cosmology — Physical cosmology Universe · Big Bang …
64Xenon — (PronEng|ˈzɛnɒn [Xenon, entry in the Oxford English Dictionary, prepared by J. A. Simpson and E. S. C. Weiner, vol. 20, second edition, Oxford: Clarendon Press, 1989. ISBN 0 19 861232 X (vol. 20), ISBN 0 19 861186 2 (set.)] or IPAlink en|ˈziːnɒn… …
65Neutron detection — is the effective detection of neutrons entering a well positioned detector. There are two key aspects to effective neutron detection: hardware and software. Detection hardware refers to the kind of neutron detector used (the most common today is… …
66Cluster decay — Nuclear physics Radioactive decay Nuclear fission Nuclear fusion Classical decays …
67Ionosphere — The ionosphere is a part of the upper atmosphere, comprising portions of the mesosphere, thermosphere and exosphere, distinguished because it is ionized by solar radiation. It plays an important part in atmospheric electricity and forms the inner …
68SS 433 — Artist s impression of SS 433 Observation data Epoch J2000.0       …
69Nuclear chemistry — is the subfield of chemistry dealing with radioactivity, nuclear processes and nuclear properties. It is the chemistry of radioactive elements such as the actinides, radium and radon together with the chemistry associated with equipment (such as… …
70Sirius — B redirects here. For other uses of Sirius, see Sirius (disambiguation). For other uses of Sirius B, see Sirius B (disambiguation). Sirius A / B …
