Physics

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Which Jovian moon has gotten the most attention from exobiologists? A) Miranda B) Europa C) Ariel ... Started by Mollykgkg	3 Replies 123 Views	Jul 27, 2018 by kilada
What encouragement for life on Mars came from the Global Surveyor? A) The ice of the south polar ... Started by jessicacav	1 Replies 87 Views	Jul 27, 2018 by johnharpe
Which type of molecules, vital to our life, were found to have survived a fiery descent to Earth on ... Started by azncindy619	1 Replies 71 Views	Jul 27, 2018 by rachel
Contrast open clusters and associations. What will be an ideal ... Started by MGLQZ	1 Replies 54 Views	Jul 27, 2018 by rnehls
Assuming the conditions ripe for life and intelligence abound in the Galaxy, what factor limits the ... Started by hbsimmons88	3 Replies 48 Views	Jul 27, 2018 by jaykayy05
If we are optimistic in our assumptions about the development of life and intelligence, then the ... Started by Wadzanai	1 Replies 36 Views	Jul 27, 2018 by nital
The Drake Equation is attempting to find A) the number of planets with life on them in the whole ... Started by a0266361136	1 Replies 153 Views	Jul 27, 2018 by s.meritte
How does the interstellar gas change the light of stars passing through it, even if no dust is also ... Started by tnt_battle	1 Replies 113 Views	Jul 27, 2018 by kjo;oj
In Drake's equation, which of the following is the closest estimate for the number of stars that are ... Started by CQXA	3 Replies 88 Views	Jul 27, 2018 by dpost18
Considering both longevity and luminosity, which of these stars would be the most likely candidate ... Started by HCHenry	1 Replies 63 Views	Jul 27, 2018 by juliaf
Most SETI searches are done at A) X-ray wavelengths. B) visual wavelengths. C) infrared ... Started by daltonest1984	1 Replies 99 Views	Jul 27, 2018 by mk6555
An extraterrestrial observer would pick up the strongest radio signals when A) the Earth was at ... Started by rachel9	1 Replies 66 Views	Jul 27, 2018 by mcinincha279
As a radio source, the period of pulsar Earth is A) 30 minutes. B) 23 hours, 56 minutes. C) 24 ... Started by pragya sharda	3 Replies 94 Views	Jul 27, 2018 by SamMuagrove
What do all the stars in the Orion Association have in common? What will be an ideal ... Started by DelorasTo	1 Replies 35 Views	Jul 27, 2018 by marict
Our earliest atmosphere, formed by outgassing, was much poorer in ________ than now. A) carbon ... Started by evelyn o bentley	1 Replies 61 Views	Jul 27, 2018 by asdfghjkl;
What is the Local Bubble? What will be an ideal response? ... Started by ericka1	1 Replies 78 Views	Jul 27, 2018 by mohan
Cultural evolution has primarily taken place over the last ________ years. A) 10 B) 100 C) 1,000 ... Started by 09madisonrousseau09	3 Replies 352 Views	Jul 27, 2018 by blazinlyss
In addition to asteroids, ________ impacts also provided the primitive Earth with water and ... Started by urbanoutfitters	1 Replies 92 Views	Jul 27, 2018 by EAN94
Outside our Earth, the most likely places for life are the planet ________ and jovian moon ________. ... Started by lilldybug07	1 Replies 60 Views	Jul 27, 2018 by flexer1n1
The ________ equation was written to assess the probabilities of technological, intelligent life ... Started by joesmith1212	1 Replies 52 Views	Jul 27, 2018 by ndhahbi
In the habitable zone, surface water must be at least partially ________ in phase. Fill in the ... Started by wenmo	3 Replies 108 Views	Jul 27, 2018 by essyface1
Compared to a G-type star, an F-type will have a(n) ________ habitable zone. Fill in the blank(s) ... Started by ghost!	1 Replies 89 Views	Jul 27, 2018 by jennafosdick
On average, the Milky Way forms about ________ stars per year. Fill in the blank(s) with correct ... Started by laurencescou	1 Replies 71 Views	Jul 27, 2018 by juiceman1987
We believe binary stars to be the ________ likely to have an extraterrestrial civilization. Fill ... Started by amal	1 Replies 48 Views	Jul 27, 2018 by dudman123
The range of wavelengths for the water hole is ________ cm. Fill in the blank(s) with correct ... Started by naturalchemist	3 Replies 88 Views	Jul 27, 2018 by princessflame2016