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comment What is the probability of an astronomical body hitting you?
If you trip and fall, the probability of Earth hitting you is close to 1. (I happen to know from personal experience that being hit by a planet can cause substantial damage.)
Jul
6
comment Why was Pluto's resonance not discovered until 1965?
It appears to be, based only on the expressed precision of the orbital periods. It's likely I'm missing something.
Jul
6
comment Why was Pluto's resonance not discovered until 1965?
According to the respective Wikipedia articles, the orbital periods of Neptune and Pluto are 60190.03 and 90465 days, respectively. The ratio is about 1.503, which seems to differ significantly from 1.5. I wonder if the figures for the periods are inaccurate -- or if the resonance doesn't have to be exact for some reason.
Jul
3
answered what is the time mentioned after date (1962-07-03+02:00) the +02:00?
Jul
3
comment what is the time mentioned after date (1962-07-03+02:00) the +02:00?
@ConradTurner: No need to be defensive, I was just making a comment.
Jul
3
comment what is the time mentioned after date (1962-07-03+02:00) the +02:00?
@ConradTurner: It would be odd to include the time zone but not the time -- and particularly odd to represent Tom Cruise's birth date with the +2:00 time zone (2 hours east of UTC), since he was born in New York. In any case I don't see 1962-07-03+02:00 on that web page.
Jun
30
comment Does a week represent something in astronomy?
That's likely, but not certain. en.wikipedia.org/wiki/Week#History
Jun
26
answered Are space telescopes completely out of the earth's atmosphere?
Jun
23
answered Does Sun have a reflection on Earth?
Jun
23
comment What is the name of our Solar System?
"Monmatia" seems to be an invention of the Urantians.
Jun
22
comment Why do pictures of the Milky Way look like a spiral?
@WayfaringStranger: It's named after the Norma constellation.
Jun
22
comment Why do pictures of the Milky Way look like a spiral?
@HDE226868: Depends on what you mean by "picture". It's definitely not a photograph taken from outside the galaxy; it's an artist's conception.
Jun
17
comment Apollo Moon Landing
There are two distinct questions here: can there be any truth to the rumor (hint: no), and why does the rumor persist? In any case, this isn't an astronomy question; it might be a better fit for space.stackexchange.com.
Jun
17
comment Why won't the Milky Way colliding with Andromeda affect the Solar System?
To get an idea of how thin the Oort cloud is, keep in mind that we can easily see right through it; in fact, it's never even been seen.
Jun
16
comment How do I get from Star Atlas to real life?
Also ignoring proper motion (which is negligible over moderate time scales).
Jun
16
comment Is it possible to use Hubble Telescope to observe Earth in the past?
Even if the timing were right, the Hubble doesn't have the resolution to see Earth-size planets at that distance.
Jun
1
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Jun
1
reviewed Approve Is mass+energy conserved when a new universe forms inside a black hole?
Jun
1
comment How Much Overlap Will the Andromeda Galaxy and the Milky Way Have When They Collide?
See also this question (which I posted to the old Astronomy beta site before it was merged into Physics).
May
29
comment Why are all quasars so far away?
I'm skeptical that there's a distance bias. Nearby quasars would be very interesting. As for quasar activity being triggered by galactic mergers, is it likely that the future collision of our galaxy with Andromeda could create a quasar?