Journal of the Amateur Astronomers Association of New York May 2008 Volume 56 Number 5, ISSN 0146-7662 EYEPIECE -priority Hubble Space Telescope. ... Not one to rest on his laurels, M a t h er d escr ib ed his work as senior project scientist and chair of the Science Working Group of the upcoming James Webb Nobel continued on page 5 REMINDER--The AAA's annual meeting is May 21. ... May 5 New Moon at 8:18 a.m.; Moon at perigee, 222,309 miles from Earth, 1:18 p.m.; Eta Aquarid meteor shower peaks. ...

... Rev. Earth Planet. ... All rights reserved 0084-6597/12/0530-0597$20.00 Keywords habitable zones, circumstellar habitable zones, terrestrial planets, life, abiogenesis Abstract For life-forms like us, the most important feature of Earth is its habitability. ... The inhabited and uninhabited regions on Earth tell us that temperature and the presence of water are the main constraints that can be used in a habitability classification scheme for rocky planets. ... Figure 2 Emergence of habitable planets...