If time travel possible then we able to travel to future or past
11307
Is time travel possible? Is it possible to go back in time?
36778
future or present with when
104255
Can we know the fundamental nature of space and time?
129656
I like knowing / to know things in advance
84790
Can I measure a journey time < 100 years on a 100 light year voyage?
95561
Gravitational waves and time
80290
Simple Present for Future Actions
115987
How can time be relative?
143589
How do we use zero conditional and first conditional to talk about things in the past
51083
Present tense for future events
1624
Past plans for the future
98499
Future Method Static
10707
When do I use Present Continuous for near future instead of "be going to"?
91427
What the live streaming of a time traveler will look like?
49680
Time traveler asks archaeologist for help in transporting a girl from dinosaur Earth to present day
113249
Does time exist in a vacuum?
99605
If you view the Earth from far enough away can you observe its past?