Misconeption about age of universe
4276
Did the Big Bang happen at a point?
54636
Dark Energy / Accelerating universe: naive question
72416
The universe appears to have a lower bound in the time dimension, why not an upper bound?
9099
What is the proper way to explain the twin paradox?
37102
Twins Paradox - Does ageing depend on motion?
65985
How can the universe by infinite when it has known start and finite time since?
12784
Is the popular explanation given for gravity in General Relativity misleading?
82440
As the universe ages, will we see more stars or less?
60084
In a very small static universe with only a particle, does it make sense to talk about time?
135755
Many-worlds: how often is the split how many are the universes? (And how do you model this mathematically.)
152130
Maximum size of the observable universe?
63414
What are the pieces of evidence that universe is expanding?
113662
What does the 'cosmological constant' represent?
61618
Could the missing antimatter lie outside the observable universe?
141780
Possible wrong interpretation of a passage
93087
How far back in time could I travel and still be understood?
98455
Twin Paradox: Still a Paradox?