Physics

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How did dark matter behave differently from normal matter during the early stages of the big bang, ... Started by ericka1	1 Replies 86 Views	Jul 27, 2018 by Jayson
Why do astronomers conclude that the Universe is filled with dark energy? Discuss two of the primary ... Started by ghost!	3 Replies 83 Views	Jul 27, 2018 by Jossy
What are the four fundamental forces in the Universe and how did they affect the first steps of the ... Started by waynest	1 Replies 94 Views	Jul 27, 2018 by Pariscourtney
What three main observed phenomena are the strongest support for the big bang theory? What will ... Started by c0205847	1 Replies 125 Views	Jul 27, 2018 by kalskdjl1212
Why did the big bang only create hydrogen, helium, and trace amounts of lithium? What will be an ... Started by lracut11	1 Replies 71 Views	Jul 27, 2018 by perkiness
How is antimatter created? What will be an ideal response? ... Started by LaDunn	3 Replies 108 Views	Jul 27, 2018 by ryrychapman11
When an astronomer measures the redshift to a distant galaxy, exactly what physical process is being ... Started by 09madisonrousseau09	1 Replies 284 Views	Jul 27, 2018 by wuly
The density of the Universe comes from baryonic matter, non-baryonic dark matter, and dark energy. ... Started by vHAUNG6011	1 Replies 131 Views	Jul 27, 2018 by vkodali
All the planets in the Solar System revolve in a clockwise motion. a. True b. False Indicate ... Started by cmoore54	1 Replies 66 Views	Jul 27, 2018 by voltaire123
Asteroids are believed to be debris left over from the failure of a planet to form at a distance of ... Started by Haya94	3 Replies 119 Views	Jul 27, 2018 by Dinolord
Kuiper belt objects are small, rocky bodies orbiting beyond Mars. a. True b. False Indicate ... Started by ericka1	1 Replies 80 Views	Jul 27, 2018 by Pariscourtney
Georges-Louis de Buffon was the first to propose that the Sun and planets formed when a large vortex ... Started by jman1234	1 Replies 37 Views	Jul 27, 2018 by k.lashomb
The passing star hypothesis suggests that planets form in the rotating disks of gas and dust around ... Started by mspears3	1 Replies 188 Views	Jul 27, 2018 by triiciiaa
The inner planets are composed of rock and metal, and the outer planets are rich in low-density ... Started by viki	3 Replies 50 Views	Jul 27, 2018 by Tabitha_2016
During Solar System formation, solid particles contracted from the gas of the nebula as it cooled. ... Started by nenivikky	1 Replies 59 Views	Jul 27, 2018 by olderstudent
Asteroids are the last of the icy planetesimals from the formation of the Solar System. a. True ... Started by Diane	1 Replies 78 Views	Jul 27, 2018 by 234sdffa
Terrestrial planets grew slowly and the Jovian planets grew quickly. a. True b. False Indicate ... Started by lilldybug07	1 Replies 139 Views	Jul 27, 2018 by HandsomeMarc
Jupiter and Saturn are so massive that they were able to grow by drawing in hot gas by gravitational ... Started by kshipps	3 Replies 102 Views	Jul 27, 2018 by leannegxo
Kuiper belt objects appear to be ancient planetesimals that formed in the outer Solar System but ... Started by mmm	1 Replies 80 Views	Jul 27, 2018 by eliasc0401
Astronomers consider the Solar System's Kuiper belt extending beyond the orbit of Neptune as an ... Started by jc611	1 Replies 73 Views	Jul 27, 2018 by lgoldst9
The dense disks of gas and dust such as those seen around the stars in Orion are sites where planets ... Started by mia	1 Replies 56 Views	Jul 27, 2018 by Beatricemm
The first extrasolar planets discovered are small and have long orbital periods. a. True b. ... Started by Mollykgkg	3 Replies 99 Views	Jul 27, 2018 by allisonblackmore
The Kepler space telescope is searching for extrasolar planets by the transit method. a. True b. ... Started by Beheh	1 Replies 75 Views	Jul 27, 2018 by TDubDCFL
What are the small bits of rock and metal that collide with Earth's atmosphere? a. meteors b. ... Started by Lisaclaire	1 Replies 78 Views	Jul 27, 2018 by frre432
Which best describes the appearance of an asteroid? a. spherical in shape and covered with ... Started by ashley	1 Replies 62 Views	Jul 27, 2018 by asware1