Physics

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Emission nebulae occur only near stars that emit large amounts of ________ electromagnetic ... Started by WhattoUnderstand	1 Replies 79 Views	Jul 27, 2018 by Melissahxx
While many elemental spectral lines are visible, almost all molecular lines lie in the ________ ... Started by savannahhooper	1 Replies 136 Views	Jul 27, 2018 by joshbk44
The interstellar gas in our portion of the Galaxy is about ________ K in temperature. A) 10 B) ... Started by FButt	3 Replies 136 Views	Jul 27, 2018 by jjorrostieta
A photosphere appears on a protostar near the end of stage A) 1. B) 2. C) 3. D) 6. E) ... Started by genevieve1028	1 Replies 113 Views	Jul 27, 2018 by cswans24
A Martian meteorite has revealed carbonate rocks and microfossils. Indicate whether the statement ... Started by tth	1 Replies 203 Views	Jul 27, 2018 by sylvia
Neutral hydrogen clouds appear ________ when viewed visually. Fill in the blank(s) with correct ... Started by humphriesbr@me.com	1 Replies 101 Views	Jul 27, 2018 by aloop
Uranus and ________ are very similar in size, mass, and color. Fill in the blank(s) with correct ... Started by fasfsadfdsfa	3 Replies 91 Views	Jul 27, 2018 by kjohnson
The gas in an HII region is ________ hydrogen. Fill in the blank(s) with correct ... Started by sam.t96	1 Replies 66 Views	Jul 27, 2018 by Ksanderson1296
________ looked very bland in Voyager 2 photos in 1986, but as equinox approached in the 1990s, its ... Started by laurencescou	1 Replies 69 Views	Jul 27, 2018 by kardosa007
The white zones of Jupiter and Saturn are made of ________ ice, apparently dissolved in the deep ... Started by Wadzanai	1 Replies 76 Views	Jul 27, 2018 by bfulkerson77
We have found Titan's surface to have perfect living conditions for Earthlike life. Indicate ... Started by karen	3 Replies 82 Views	Jul 27, 2018 by SAUXC
Because it has a higher percentage of ________, Neptune appears even bluer than Uranus. Fill in ... Started by lunatika	1 Replies 60 Views	Jul 27, 2018 by zogaridan
Neutral hydrogen can be detected because its electron occasionally ________ its spin and creates the ... Started by justinmsk	1 Replies 65 Views	Jul 27, 2018 by vickybb89
Each factor in the Drake Equation has a well-known, established value. Indicate whether the ... Started by cherise1989	1 Replies 74 Views	Jul 27, 2018 by amandalm
The Drake Equation seeks to estimate the number of technological civilizations in the galaxy. ... Started by geoffrey	3 Replies 92 Views	Jul 27, 2018 by ebonylittles
Generally, the densest parts of the interstellar medium are the ________. Fill in the blank(s) ... Started by charchew	1 Replies 64 Views	Jul 27, 2018 by zacnyjessica
Compared to Jupiter, Saturn's east-west zonal (band) flow is ________. Fill in the blank(s) with ... Started by Ebrown	1 Replies 74 Views	Jul 27, 2018 by KKcool
Earth-like planets have been observed outside our solar system orbiting in the habitable zone. ... Started by Davideckstein7	1 Replies 90 Views	Jul 27, 2018 by beccamahon
An F-type star would have a larger habitable zone that does our Sun. Indicate whether the ... Started by fasfsadfdsfa	3 Replies 76 Views	Jul 27, 2018 by hramirez205
Their magnetic fields should originate in the planets' ________, but those of Uranus and Neptune ... Started by debasdf	1 Replies 50 Views	Jul 27, 2018 by ryrychapman11
Most bright blue stars we see with the naked eye are good candidates for life, since they have much ... Started by scienceeasy	1 Replies 37 Views	Jul 27, 2018 by meganlapinski
A star of five solar masses would reach the main sequence much ________ than our Sun. Fill in the ... Started by c0205847	1 Replies 87 Views	Jul 27, 2018 by micaelaswann
How are Jupiter and Saturn similar? What will be an ideal ... Started by ETearle	3 Replies 168 Views	Jul 27, 2018 by bhavsar
Around Sun-like stars, we have, to date, only found Jupiter-like planets. Indicate whether the ... Started by yoroshambo	1 Replies 85 Views	Jul 27, 2018 by Cnarkel
The radio signals from Earth are greater than those from the Sun. Indicate whether the statement ... Started by Frost2351	1 Replies 48 Views	Jul 27, 2018 by coyin