[Indy Pendance]

Astronauts don't sustainably go forward or backward in time. They maintain the earth's rotation speed.

[leadpenny]

Now I know you're partying.

[Connie Cardullo]

Astronauts don't sustainably go forward or backward in time. They maintain the earth's rotation speed.

But, they do age minutely less than the rest of us because of gravitational differences.

[FreedomCalls]

Astronauts don't sustainably go forward or backward in time. They maintain the earth's rotation speed.

They exceed it by a large margin. The ISS circles the earth every 90 minutes.

[Flightdeck]

Astonauts go a little over 17600 mph relative to us.

[robertpaulsen]

"According to relativity, how much younger are astronauts in earth-orbit after 6 months?"

" Lets assume that they travel at a speed near 20,000 miles per hour. This is about 9 kilometers/sec or something like 0.00003 times the speed of light. This produces a special relativistic time dilation factor of 1+.5*(.00003)^2 = 1.00000000045"

"If we multiply this by the 6 month trip, then we get that the astronauts would be about .007 seconds younger than if thay had stayed on the Earth. There is also a slight gravitational time dilation effect ( 1 - 2GM/rc^2 )^1/2 because their trip was at a lower gravitational field than on the surface, but this is not very large compared to the special relativistic factor."

[xjcsa]

Astronauts don't sustainably go forward or backward in time. They maintain the earth's rotation speed.

What are you talking about? The shuttle circles the earth in ninety minutes; that's 16 times the speed of the earth's rotation.

[Oztrich Boy]

Astronauts don't sustainably go forward or backward in time.

They go forward in time, as do we all.