2007-02-11 08:39:04 · 6 answers · asked by Keshia C 1 in Science & Mathematics ➔ Astronomy & Space
We need to talk of a constant time and that is earth's year. The travel time to Neptune is not counted in the absence of data on the velocity of the spacecraft. So, assuming that the travel to Neptune and back to earth is instantaneous ( a wrong but necessary assumption), we have 1 + 10 = 11 earth years.
2007-02-11 08:45:29 · answer #1 · answered by Swamy 7 · 1⤊ 0⤋
The relative difference in speed between the Earth and Neptune is not even close to the speed of light. The gravitational field on neither Earth nor Neptune is very close to that of a Black Hole. Time progresses at very similar rates at both locations. The time percieved to have passed by the creature taken to Neptune and retrieved 10 earth years later would have been very close to 10 years. The age of the creature would therefore be amost exactly 11 years old.
2007-02-11 17:14:22 · answer #2 · answered by anonimous 6 · 0⤊ 0⤋
11 earth years? If you are discussing time dilation effects, even really close to the speed of light it would take about 4 hours from Earth to Neptune (Neptune is about 4.3 billion km from earth, speed of light is about 300,000 km/s, works out at 3.98 hours).
2007-02-11 16:51:07 · answer #3 · answered by Chemist of Carnage 3 · 0⤊ 0⤋
11 years old
2007-02-11 16:42:21 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Assuming me are traveling at currently achievable speeds, they should be a few hours within elevent years old.
2007-02-11 16:42:56 · answer #5 · answered by thedavecorp 6 · 0⤊ 0⤋
if traveling at the spped of light, they could be any age
2007-02-11 16:47:02 · answer #6 · answered by imp 1 · 0⤊ 0⤋