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Space and Astronomy for Kids

Recent Answers

2017-02-22 Astronomy - Probability:

Hello, and thanks for your question.    First, the decision to reclassify Pluto - unbeknownst to many - was not based on any objective parameters but rather on a subjective definition that was voted on

2017-02-19 Astronomy - Telescopes:

Hi James    The views you get from a telescope depend on two things:. Light gathering (how big the lens or mirror is) and magnification.  If you want to see details on the planets, the best ones to look

2017-02-19 Astronomy - Kepler's laws:

I already told you and SHOWED you that you CANNOT have a perpendicular vector (or scalar) value to the radial attractive force! Besides, IF Vp is a *velocity* then it must by definition be a vector! You

2017-02-09 Astronomy - Rates of Rotational and Revolution of Planets:

The 1/20th of a second in 5000 years is a mistake (sorry). The actual amount is about 2 * 50 = 100 milliseconds, or about 1/10th of a second (or more accurately, since it is about 1.7 instead of 2 msec/day/century

2017-02-09 Astronomy - Rates of Rotational and Revolution of Planets:

I don't know whether any consideration has been given to what to do when the rotation rate becomes so slow that there is a significant fraction of a second error in the length of the day; and if there


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