Martin Kochanski's user avatar
Martin Kochanski's user avatar
Martin Kochanski's user avatar
Martin Kochanski
  • Member for 7 years, 9 months
  • Last seen more than a week ago
29 votes
Accepted

Distance of the Crab nebula and the speed of light

24 votes
Accepted

Does the Inverse Square Law mean that the apparent diameter of an object of same mass has the same gravitational effect?

21 votes

Non-anthropic, universal units of time for active SETI

12 votes

How did Arecibo detect methane lakes on Titan, and image Saturn's rings?

11 votes

Are multiple stars actually more common than singles?

10 votes

Why, since Earth is in free fall towards Sun, are tides affected by Sun's gravity? Why aren't the oceans "weightless" like astronauts?

6 votes
Accepted

Should the synodic period or the orbital period be used to determine the diameter of the Moon?

5 votes
Accepted

Nicolas Copernicus discovery

4 votes

Is it plausible for a planet that is positioned in the habitable area of a solar system to have little extractable metals?

3 votes

Can I learn astrophysics and astronomy with my basic math?

3 votes

Question about tidal forces and the Roche limit

3 votes

Why is today the shortest day but the solstice is actually tomorrow?

3 votes

How to show that a complete revolution of Earth around the sun takes 365 1/4 days?

2 votes

When will the last total lunar eclipse happen?

2 votes

Does the escape velocity formula take into account how a gravitationally bound object's distance to its primary increases before coming back down?

2 votes

Distinction between signal from terrestrial and signals from celestial sources

1 vote

How do you go from transit times to Earth-Sun distance?

1 vote

Tidal influences of planets on the sun

1 vote

What is the temperature about 10 or 15 feet below Mars' surface?

0 votes

How do we know the moon is smaller than Earth?