Venus can appear as a crescent through the telescope.
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The Earth and Moon always keep the same side towards each ot…
The Earth and Moon always keep the same side towards each other.
Most lunar craters are volcanic in origin.
Most lunar craters are volcanic in origin.
The earth’s inner core is about the same temperature as the…
The earth’s inner core is about the same temperature as the surface of the Sun.
The density of Mars is very similar to that of the other ter…
The density of Mars is very similar to that of the other terrestrial planets.
The lunar mare radioactively date back to 4.6 billion years,…
The lunar mare radioactively date back to 4.6 billion years, at the origin of the Moon, hence their dark color due to this aging.
The Sun’s tidal pull has slowed Mercury’s rotation down to _…
The Sun’s tidal pull has slowed Mercury’s rotation down to __________ that of its year.
Which of these gases is the least abundant in our atmosphere…
Which of these gases is the least abundant in our atmosphere?
Greenhouse gases in our atmosphere trap just enough heat to…
Greenhouse gases in our atmosphere trap just enough heat to keep the earth’s oceans liquid.
Mars appears red in color because of refraction of light by…
Mars appears red in color because of refraction of light by its atmosphere, much like the color of the totally eclipsed Moon.