a closer look at the planets Flashcards
mercury’s view from earth
Mercury is very close to the sun, so it is rarely visible in the night
Sky
does mercury have an atmosphere?
no
mercury temp range
427°C/-173 (extremely high, no constant temp)
mercury surface features
many craters on the surface caused by collisions with chinks of rock or meotorites
mercurys space probe visits
mariner 10, messenger, BepiColombo
mercury unique details
it orbits the sun at 50km/s, which is faster than any other planet
venus’s nickname
“the morning star.” This is bc its rlly bright and looks like a star
venus’s view from earth
Like mercury, it can be seen from earth when it passes in front of the sun. Transits occur in pairs, 81 years apart
venus’s atosphere
-mostly carbon dioxyde.
-really thick
venus’s temperature
averages 452°C
venus’s surface features
the harsh environment makes exploration of this planet difficult. However scientists used meggellan to see venus’s many impact craters
venus’s space probe visits
Ten venera probes (uncrewed) achieved a sof tlanding on the surface, however one of them returned
Venus’s unique details
Venus is the brightest object we can see in the sky bc its rly close and iths thick atmosphere reflects light
Earth’s atmosphere
Earths unique atmosphere contains mostly nitrogen, oxygen, and water vapour. It also contains a small amount of ozone. The atmosphere is also responsible for moderating temperature from day to night
how much percent of earth is water
70% water
earths temp range
-88°C to 58°C depending on where you are and what time of year it is
mars’s nickname
“red planet” because of its reddish oil
mars’s view from earth
when mars and earth are close tgt, mars appears very bright in our sky, howeverm this only happens once or twice every 15 or 17 years.
mars’s atmosphere
dry and barren planet. Atmosphere is made up of mostly carbon dioxyde, argon, nitrogenm and also small amounts of oxygen and water vapour
mars’s temp range
-90°C to -5°C
mars’s surface features
-Giant dust storms periodically enguld mars, changing its wind-swept landscape
-volcanoes, canyons, dust storms, channels, and impact craters
mars’s space & lander visits
“mars odyssey” which discovered a large quantity of ice only 1m below the surface
unique details
scientists believe that life may have existed there. Bc there is evidence to suggest that mars once had volcanoes, glaciersm and floods of water
gas giants atmosphere
they consist of hydrogen and helium gases, so these planets have low densities