A Giant Snow ball

Status
Not open for further replies.
A

astroboy3k

Guest
Has any man made object ever traveled outside of our solar system? If so, did we received any signal on where that might be? What if our galaxy was just a giant snow ball and the universe is made of trillions x trillions of snow ball? Or better yet, let's say the universe had edges and they where round, so that would make the universe spherical. And in the edges of that sphere is glass or one way mirror, that causes stars we see double, triple, even quadruple because of their own reflections and outside of those walls (edges) is a kid holding the sphere and shaking it to make snow effects.
 
C

CalliArcale

Guest
Hey, be nice.<br /><br />The only manmade object to have left the solar system thus far is Voyager 1 -- if you define the edge of the solar system as the heliopause (where the solar wind's influence is less than the interstellar wind). There are a total of four objects currently on solar escape trajectories: Pioneer 10, Pioneer 11, Voyager 1, and Voyager 2. Voyager 1 is travelling the fastest, and has overtaken all the others, but they're all leaving the solar system. The locations of Pioneers 10 & 11 are not precisely known; both spacecraft no longer respond when engineers attempt to contact them, due to a combination of distance, declining electrical power, and declining propellant. Pioneer 11 failed, and Pioneer 10 is simply too far away for communications. Both are much too small to be detected passively, so they're basically gone.<br /><br />The Voyagers are both still in active communications with Earth. Their missions are not over, and they continue to return valuable science data. Neither has a working camera anymore, and Voyager 1 has lost the use of most of its instruments. But they are still plugging away, helping astronomers learn more about the extreme regions of the solar system.<br /><br />The elite club of spacecraft on solar escape trajectories will soon be joined by a fifth spacecraft, the first to go on such a voyage in decades. New Horizons will launch next year and take ten years to travel to Pluto. It will make a flyby of the ninth planet and then continue on out into space. <div class="Discussion_UserSignature"> <p> </p><p><font color="#666699"><em>"People assume that time is a strict progression of cause to effect, but actually from a non-linear, non-subjective viewpoint it's more like a big ball of wibbly wobbly . . . timey wimey . . . stuff."</em>  -- The Tenth Doctor, "Blink"</font></p> </div>
 
N

nexium

Guest
I think Cassimi has more missions after Saturn, but has a good chance of also crossing the heliopause in a few decades. Neil
 
N

newtonian

Guest
Calli - Hi!<br /><br />Has the anomaly of the slowing of these space probes ever been solved?
 
N

newtonian

Guest
crazyeddie - Hi!<br /><br />Well, your post appears accurate, I think, if you had only used the present tense.<br /><br />However, you used future tense - please see Calli's post above!
 
V

vogon13

Guest
In the cases of Voyagers 1 and 2, upon completion of the final Centaur stage burn, a solid rocket motor provided an additional ~1 km/sec of dv to the craft before separation.<br /><br />I realize these motors were not instrumented, and did not participate in any of the subsequent course corrections, but could we assume a close Jupiter flyby near the time of their respective Voyagers'? And if they passed on the same side of Jupiter as the Voyagers, they would have experienced some of the gravitational slingshot effect. Enough?<br /><br />Probably unknowable precisely what happened, but maybe one or both 'got away' too?<br /><br /> <div class="Discussion_UserSignature"> <p><font color="#ff0000"><strong>TPTB went to Dallas and all I got was Plucked !!</strong></font></p><p><font color="#339966"><strong>So many people, so few recipes !!</strong></font></p><p><font color="#0000ff"><strong>Let's clean up this stinkhole !!</strong></font> </p> </div>
 
A

alokmohan

Guest
Casini was never intented and designed to do so,So cassini crossing helioupause is irrelvant.
 
Status
Not open for further replies.