Questions with the keyword 'observe'

• Would it be theoretically possible to deduce the masses and distances of the other planets in our Solar System solely by doppler to Adam, SheilaCategory: Space Comments: (No comments so far )
• Does present and future exist? I ask for present because anything I see is not the instantly observed because light by waveicle to Adam, Geoff, Rob, Sheila, SuzieCategory: General Comments: (So far, one comment )
• Why did it take so long to observe the top quark after observing the other five? by freddie to SuzieCategory: General Comments: (No comments so far )