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Alex's user avatar
Alex
  • Member for 7 years, 7 months
  • Last seen more than a month ago
80 votes
3 answers
20k views

Why didn't the Big Bang create heavy elements?

61 votes
4 answers
8k views

Do solar systems typically spin in the same direction as their galaxy?

51 votes
3 answers
3k views

Are there tides in the atmosphere?

26 votes
1 answer
5k views

Are there naturally occurring lasers?

26 votes
3 answers
4k views

What is the smallest distance possible between two stars?

24 votes
2 answers
2k views

Is an electron a superconductor?

15 votes
2 answers
4k views

When an atom emits a photon are all directions equally likely?

12 votes
5 answers
5k views

Did the Sun form around a solid core?

11 votes
5 answers
6k views

Is Dark Matter expected to be equally distributed in our solar system?

8 votes
2 answers
275 views

Is dark energy homogeneous and/or isotropic?

6 votes
2 answers
512 views

What is the most common form of antimatter in the universe?

6 votes
3 answers
2k views

Why is night vision lacking color?

5 votes
0 answers
160 views

What happens to the observed thermal energy of objects at relativistic speeds?

5 votes
3 answers
1k views

Is every electron in the Universe in a different quantum state?

5 votes
3 answers
3k views

What is the binding energy of a neutron star?

4 votes
2 answers
19k views

How many atoms are there in our solar system?

4 votes
2 answers
1k views

Are Cosmic Rays net neutral in charge?

4 votes
1 answer
99 views

When will galaxies become unstable due to dark energy?

3 votes
3 answers
212 views

Are there more photons than nuclei within the Sun?

3 votes
1 answer
489 views

Does the Earth's magnetic field sort cosmic rays by charge?

3 votes
1 answer
79 views

How does space expansion affect cosmic rays?

3 votes
1 answer
379 views

How do neutrons escape nuclei?

3 votes
1 answer
2k views

How can the orbit of Jupiter's moons be used to calculate the speed of light? [duplicate]

3 votes
4 answers
1k views

How is relativity related to anti-particles? [duplicate]

3 votes
2 answers
178 views

Do gamma ray bursts play a role in cosmic evolution?

2 votes
3 answers
598 views

What is the binding energy of a black hole?

2 votes
1 answer
77 views

Are there any other pairs similar to virtual and normal photons? [duplicate]

2 votes
0 answers
56 views

Do we expect to find a dark energy boson?

2 votes
2 answers
2k views

If the ionosphere reflects radio waves then why use satellites? [closed]

2 votes
1 answer
2k views

Quantum efficiency of Photoelectric effect