Alan Boss is the Chairman of NASA’s advisory group for planet exploration.He told VOA that Proxima b not only confirms the discovery of a planet, but also increases the number of other possible “earths” by a huge amount.Boss said it is possible that most stars may have at least one ...
A few thousand years ago, primitive chemistry focused mostly on converting one substance into another. The word "chemistry" itself is arguably traced to the name of a region of ancient Egypt where such transformation attempts were practiced. Over the centuries, philosophers tried to come to terms ...
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If one wishes to include this effect, however, then the fraction of stars that host Earths and not Hot Jupiters is given by 𝑓hj=1−𝑍¯2𝑍2max.fhj=1−Z¯2Zmax2. (14) Here, we have used the mean metallicity rather than averaging this fraction over the metallicity ...
If one wishes to include this effect, however, then the fraction of stars that host Earths and not Hot Jupiters is given by 𝑓hj=1−𝑍¯2𝑍2max. (14) Here, we have used the mean metallicity rather than averaging this fraction over the metallicity distribution, but this ...