Earth, Mars, Jupiter and Saturn
How many earth could fit inside of Jupiter?
1323 earths.
How hot is it on Jupiter's core?
20,000 degrees.
How many top layers does Jupiter have?
5
How many rings did scientists think Saturn had before the spacecraft Cassini visited it?
8 rings.
How big does a moon on Saturn have to be?
A moon on Saturn could only be the size of a pebble as long as it orbits the planet.
Do scientists think that Jupiter has a rocky core like Earth or no core at all?
A rocky core like Earth.
Do all Jovian planets have planetary rings or is it just Saturn?
All Jovian planets have planetary rings.
Is Titan warm or cold?
Cold.
What is Earth's core made of?
Earth's core is made of iron.
What does Saturn's moon Enceladus have on it's surface?
Enceladus is covered with ice and has ice geysers on it's suface.
Which of Jupiter's large moons may have a large ocean that is hidden by the ice that covers the moon's surface?
Europa
What is Jupiter's moon Europa covered with?
Europa's surface is covered with water ice—and it may be hiding a vast ocean.
What are scientists looking for when they send robotic landers to Mars?
Evidence of life or building blocks of life.
How big are Jupiter's moons?
Four of Jupiter's moons are large—even planet-sized. The other 60 or so moons of Jupiter are much smaller and are much less interesting.
What is Jupiter's biggest moon?
Ganymede is Jupiter's biggest moon.
What planet(s) is Jupiter's moon Ganymede bigger than?
Ganymede is bigger than the planet Mercury.
What holds moons in orbit of other planets?
Gravity.
What makes up almost all of Jupiter's atmosphere?
Hydrogen and helium make up almost all Jupiter's atmosphere.
How far is the Earth from the sun?
It is 150 million kilometers or 93 million miles.
How big is the Great Red Spot?
It is three times the size of Earth.
How long has the Great Red Spot been going on?
Over 300 years.
How big are the raindrops on Titan?
Raindrops there are twice as big as raindrops on Earth.
How do scienctists think that Saturn's rings were made?
Scientists think that Saturn had another moon that shatered and made the rings arond Saturn.
How long have space probes been studying Saturn?
Space probes have studied Saturn since about 1980, but technology has improved since then.
Why does the planet Mars look red when you see it from a distance?
The soil on Mars has rust in it and because of the red dust in the atmosphere.
What do Europa, Enceladus and Titan all have in common?
They all have tholin.
What are the discerning features of Earth necessary for supporting life?
Water and Oxygen
Does the water in Enceladus have nutrient in it?
Yes. It has salt and simple organic compounds in the water on Enceladus.
What element is the basis of all life on Earth?
carbon
How could Enceladus possibly support life?
Enceladus has ice geysers and geysers are very hot so if there is heat and ice Enceladus could possibly support life.
How many times stronger is the gravity on Jupiter compared to Earth's gravity?
Gravity on Jupiter is about 2½ times as strong as on Earth.
Is gravity on Mars like gravity on Mercury?
Gravity on Mars is almost the same as it is on Mercury: a little more than 1/3 what it is on Earth. So if you weigh 100 pounds on Earth, you would weigh about 38 pounds on Mars.
When did scientists first observe the Great Red Spot?
In 1665 scientists first observed it.
What has the spacecraft Cassini-Huygens been doing in outer sace since 2004?
In 2004, the Cassini-Huygens spacecraft began to orbit Saturn and send back data and images that greatly increased what we know about Saturn.
What is Jupiter's moon Io coverd with?
Io is covered with active volcanoes.
What is Mars's core made of?
It has a liquid core made of sulfur and iron.
How big is Saturn's moon Titan?
It is bigger than the planet Mercury.
What is the red spot on Jupiter called?
It is called the Great Red Spot.
What is the only known planet with liquid water on it's surface?
It is the only known planet in the solar system that has liquid water on its surface.
What are Saturn's rings made of?
It's rings are made of a lot of tiny ice particles.
What are many of Jupiter's moons made of?
Many of Jupiter's moons are just chunks of rock.
Does Mars have any moons?
Mars has 2 moons, Phobos and Deimos. Both of these moons are smaller than Earth's Moon.
How much carbone dioxide is on Mars?
Mars is about 95% carbon dioxide
How was Mars once like Earth?
Mars was once similar to Earth, with many volcanoes and liquid water channels. However, now it is very cold and the water is frozen solid.
How far is Saturn from Earth?
Nearly 1 billion miles away.
How much of Earth's surface is covered by oceans?
Oceans cover over 70% is covered by oceans.
How long are "Jupiter years" and "Jupiter days"?
One "Jupiter year" is about 11.86 Earth years. On the other hand, Jupiter spins so fast on its axis that one "Jupiter day" is only about 9.9 Earth hours.
How long is a Mars day?
One "Mars day" is about 24 hours, 37 minutes, or about 1.03 Earth days.
How long is a Mars year?
One "Mars year" is about 687 Earth days—about 1.88 Earth years.
How long is a "Saturn day"?
One "Saturn day" lasts 10 hours and 13 minutes because Saturn spins almost as fast as Jupiter does.
What is one on Earth's most prominent features?
One of the Earth's most prominent features is the moon.
How many rings does Saturn have?
Saturn has more than 30 rings made of ice crystals left behind by a come that collided with one of Saturn's moons.
Which planet has the most unusual moon system?
Saturn has the most unusual moon system.
What is Saturn made of?
Saturn is a gas giant comprised mainly of hydrogen and helium. It is not very dense.
Does Saturn's atmosphere have layers? If so name the layers.
Saturn's atmosphere has layers. The top layer is hydrogen and helium gas. Lower layers are ammonia ice, ice made of ammonia compounds, and water ice. Saturn may also have a small, rocky core.
Is Saturn's orbit around the sun eliptical?
Saturn's orbit around the sun is elliptical.
How long is a "Saturn year"?
Saturn's year is about 29 Earth years long.
What have scientists been studying on Saturn?
Scientists are studying lightning on Saturn and evidence of liquid water geysers on Saturn's moon Enceladus.
Who has sent space crafts to Mars?
Spacecraft from the United States, Soviet Union, Europe, and Japan have studied and explored Mars for more than 50 years. Although dozens of orbiters, landers, and rovers have been launched toward Mars, most of them have failed.
Why is Earth good for the existence of life?
Temperature range, type of atmosphere, gravitational pull—everything is good for the existence of life.
What are the tempuratures on Saturn?
Temperatures on Saturn range from -238°F (-150°C) at the top of its atmosphere to 21,092°F (11,700°C) at its core.
What is the tempurature on Jupiter?
Temperatures range from -229°F (-145°C) at the top of its atmosphere to an estimated 64,340°F (35,727°C) near Jupiter's core.
What are the tempuratures on Mars?
Temperatures range from 70°F in the summer at the Mars equator, to -225°F in the winter at the poles.
What is the only active space craft on Mars?
The Opportunity rover, launched by NASA in 2003, is (as of July 2011) the only active spacecraft on the surface of Mars.
What is Jupiter's inner ring called?
The halo.
How many moons does Jupiter have?
64 moons on Jupiter.
How many rings does Jupiter have?
Jupiter has three rings.
How big is Jupiter's moon Europa compared to the moon?
Jupiter's moon Europa is about 90% the size of Earth's Moon.
What is Saturn's atmosphere made of?
Like Jupiter, Saturn's atmosphere is mostly hydrogen and helium gases. Because Saturn is mostly gas, though, its gravity is almost the same as Earth's.
What is the first Jovian planet?
The first Jovian planet is Jupiter.
How many degrees does Jupiter lean on it's axis?
3 degrees.
What does Earth's interior consist of and what is the crust?
Earth's interior consists of a core and a mantle; the crust is the thin outer layer on which we live.
Why are the Jovian planets called gas giants and outer planets?
These planets are also known as "gas giants" (because they are immense balls of gas) or the outer planets (because they are the 4 planets farthest from the Sun).
What is the outer core?
This core is a dense ball of metal - the outer core is liquid and is the source of the Earth's magnetic field, and the inner core is solid.
What is tholin?
Tholin is the chemical building blocks for life to begin.
Does Titan have a thin or thick atmosphere?
Titan has a very thick atmosphere.
Which has more of a potential for life Enceladus or Titan?
Titan.
Would humans live if they breathed the air on Mars?
human explorers would die if they breathed the air on Mars.