Physics

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What is an organic molecule based on? Why are they important? What will be an ideal ... Started by cabate	1 Replies 96 Views	Jul 27, 2018 by JCABRERA33
Why does Europa's surface promise life of some kind? What will be an ideal ... Started by Diane	1 Replies 91 Views	Jul 27, 2018 by todom5090
Which factor in the Drake equation is the most uncertain? What will be an ideal ... Started by jilianpiloj	1 Replies 123 Views	Jul 27, 2018 by mbcrismon
Why does SETI concentrate on the water hole? What will be an ideal ... Started by pragya sharda	3 Replies 101 Views	Jul 27, 2018 by Shshxj
Discuss the nature of the Miller-Urey experiments. What are the results of these experiments? ... Started by ENagel	1 Replies 144 Views	Jul 27, 2018 by cadimas
What is meant by the idea life on Earth had an interstellar origin? What will be an ideal ... Started by tichca	1 Replies 125 Views	Jul 27, 2018 by kusterl
Define technological civilization according to Drake. What will be an ideal ... Started by D2AR0N	1 Replies 66 Views	Jul 27, 2018 by lgoldst9
Describe the reasoning leading to the idea that the number of technological civilizations in the ... Started by Cooldude101	3 Replies 71 Views	Jul 27, 2018 by kkenney
What is the water hole? Why is so promising to radio astronomers? What will be an ideal ... Started by DelorasTo	1 Replies 78 Views	Jul 27, 2018 by ryrychapman11
What is SETI? How is it being done? What will be an ideal response? ... Started by mspears3	1 Replies 65 Views	Jul 27, 2018 by manuelcastillo
Light from Proxima Centauri takes 4.2 years to reach Earth. Indicate whether the statement is ... Started by biggirl4568	1 Replies 83 Views	Jul 27, 2018 by kingdude89
A supercluster is a cluster of supergiants. Indicate whether the statement is true or ... Started by audie	3 Replies 87 Views	Jul 27, 2018 by momolu
Spiral arms are concentrated at the center of our Galaxy. Indicate whether the statement is true ... Started by Davideckstein7	1 Replies 45 Views	Jul 27, 2018 by mochi09
The Sun is a nonluminous ball of hot gas. Indicate whether the statement is true or ... Started by schs14	1 Replies 35 Views	Jul 27, 2018 by diana chang
The field of view of an image is limited to the half of the visible part of the image. Indicate ... Started by fox	1 Replies 85 Views	Jul 27, 2018 by dreamfighter72
Identify a true statement about Venus. A) It is the largest planet in the Solar System. B) It ... Started by ec501234	3 Replies 119 Views	Jul 27, 2018 by Chou
__________are long spiral pattern of bright stars, star clusters, gas, and dust. A) Spiral stars ... Started by ec501234	1 Replies 146 Views	Jul 27, 2018 by mk6555
Which of the following objects is a part of the Solar System? A) Procyon B) Sirius C) Neptune ... Started by asd123	1 Replies 63 Views	Jul 27, 2018 by eliasc0401
A(n) _____ is a cluster of galaxy clusters. A) supercluster B) protocluster C) megacluster ... Started by armygirl	1 Replies 62 Views	Jul 27, 2018 by chinwesucks
The__________is the spiral galaxy that contains the Sun. A) Andromeda Galaxy B) Cartwheel ... Started by anshika	3 Replies 73 Views	Jul 27, 2018 by ndhahbi
The average distance from Mars to the Sun is _____. A) 0.8 AU B) 1 AU C) 1.5 AU D) 2 ... Started by abc	1 Replies 35 Views	Jul 27, 2018 by Loise Hard
_____ is a method for expressing very large or very small numbers by using powers of 10. A) ... Started by ts19998	1 Replies 77 Views	Jul 27, 2018 by leahchrapun
Which of the following is true of planets? A) They are self-luminous balls of hot gases. B) ... Started by audie	1 Replies 55 Views	Jul 27, 2018 by nanny
In the diagram below, what is the diameter of Mercury? a. about 240 km b. about 2400 km ... Started by cabate	3 Replies 43 Views	Jul 27, 2018 by LegendaryAnswers
Our Galaxy is called the _____. A) Andromeda Galaxy B) Cartwheel Galaxy C) Milky Way Galaxy ... Started by schs14	1 Replies 113 Views	Jul 27, 2018 by ASDFGJLO