Star Found Shooting Water "Bullets"

Message boards : SETI@home Science : Star Found Shooting Water "Bullets"

Author	Message
Jason Safoutin Volunteer tester Send message Joined: 8 Sep 05 Posts: 1386 Credit: 200,389 RAC: 0	Message 1118180 - Posted: 17 Jun 2011, 4:33:55 UTC Last modified: 17 Jun 2011, 4:41:55 UTC
	Star Found Shooting Water "Bullets" This is an incredible story. This could mean many things for how life formed on Earth. Imagine all the other planets throughout space that would be bombarded with these water droplets. This could mean an infinite number of planets that have life on it. "Seven hundred and fifty light-years from Earth, a young, sunlike star has been found with jets that blast epic quantities of water into interstellar space, shooting out droplets that move faster than a speeding bullet. The discovery suggests that protostars may be seeding the universe with water. These stellar embryos shoot jets of material from their north and south poles as their growth is fed by infalling dust that circles the bodies in vast disks. "If we picture these jets as giant hoses and the water droplets as bullets, the amount shooting out equals a hundred million times the water flowing through the Amazon River every second," said Lars Kristensen, a postdoctoral astronomer at Leiden University in the Netherlands." ____________ "By faith we understand that the universe was formed at God's command, so that what is seen was not made out of what was visible". Hebrews 11.3
	ID: 1118180 ·

William Rothamel Send message Joined: 25 Oct 06 Posts: 2124 Credit: 1,088,132 RAC: 145	Message 1118211 - Posted: 17 Jun 2011, 9:05:36 UTC - in response to Message 1118180.
	Two things bother me about this story. Where is a star going to get the oxygen to form water? Explain to me how liquid water can form at 1000 degrees which is the temperature at which water would disassociate into oxygen and hydrogen. To answer my own questions. Comets are snowballs--they get water from somewhere. The pressure on the water may allow it to be in liquid state at elevated temperatures ??
	ID: 1118211 ·

Gary Charpentier Volunteer tester Send message Joined: 25 Dec 00 Posts: 10320 Credit: 5,085,718 RAC: 6,320	Message 1118276 - Posted: 17 Jun 2011, 15:08:18 UTC
	Can you say Oort cloud? ____________
	ID: 1118276 ·

Jason Safoutin Volunteer tester Send message Joined: 8 Sep 05 Posts: 1386 Credit: 200,389 RAC: 0	Message 1118446 - Posted: 18 Jun 2011, 0:33:07 UTC - in response to Message 1118211. Last modified: 18 Jun 2011, 0:41:11 UTC
	Two things bother me about this story. Where is a star going to get the oxygen to form water? Explain to me how liquid water can form at 1000 degrees which is the temperature at which water would disassociate into oxygen and hydrogen. To answer my own questions. Comets are snowballs--they get water from somewhere. The pressure on the water may allow it to be in liquid state at elevated temperatures ?? I thought Comets were not snow and ice? At least any of the ones they have taken samples from have shown that they are not made of any of those things.From what I read its not liquid water until after it is ejected from the star and cooled to the point where it condenses as it slows down. After tracing the paths of these atoms, the team concluded that water forms on the star, where temperatures are a few thousand degrees Celsius. But once the droplets enter the outward-spewing jets of gas, 180,000-degree-Fahrenheit (100,000-degree-Celsius) temperatures blast the water back into gaseous form. Once the hot gases hit the much cooler surrounding material—at about 5,000 times the distance from the sun to Earth—they decelerate, creating a shock front where the gases cool down rapidly, condense, and reform as water, Kristensen said. Also: It's not until the water vapor is far from the star that it returns to a liquid state. At that point the water is moving at about 80 times the speed of a bullet fired from a pistol, or about 124,000 miles per hour, writes National Geographic. As Lars Kristensen, lead author of the study -- which has been accepted for publication in the journal Astronomy & Astrophysics -- points out, that's "about 80 times faster than bullets flying out of a machine gun." ____________ "By faith we understand that the universe was formed at God's command, so that what is seen was not made out of what was visible". Hebrews 11.3
	ID: 1118446 ·

tbret Send message Joined: 28 May 99 Posts: 1804 Credit: 124,284,935 RAC: 408,711	Message 1121281 - Posted: 25 Jun 2011, 3:18:01 UTC - in response to Message 1118276.
	Can you say Oort cloud? Oort cloud. Yeah.
	ID: 1121281 ·

Message boards : SETI@home Science : Star Found Shooting Water "Bullets"