Planets & exoplanets

Question 1

What is the name of the smallest known exoplanet?

Answer 1

PSRB1257+12a

Question 2

How many light years is PSRB1257+12a away?

Answer 2

2,300

Question 3

What does PSRB1257+12a orbit

Answer 3

It orbits a pulsar

Question 4

What is the name of the largest known exoplanet?

Answer 4

HR2562b

Question 5

In the past what did Mars have?

Answer 5

Thick atmosphere, bodies of water such as lakes and rivers, oceans of liquid water

Question 6

What are some other habitable zones in the solar system?

Answer 6

Moon systems of Jupiter and Saturn

Question 7

Why are they not habitable?

Answer 7

Do not get enough energy from the sun

Question 8

What are the other 2 additional mechanisms

Answer 8

Tidal heating and radiogenic heating

Question 9

How does tidal heating work?

Answer 9

The moon orbiting, can be squeezed and stretched dry during orbit, puts stress on the crust causing it to heat up

Question 10

In the Jupiter system what does Europa, Ganymede and probably Callisto have in common

Answer 10

Have oceans of liquid water underneath their ice crusts

Question 11

Does Saturn’s moon Enceladus have a similar ocean?

Answer 11

Yes

Question 12

What is Titan?

Answer 12

One of Saturn’s moon, scientist are looking for life because it has a thick atmosphere, complex organic molecules and river and lakes of liquid

Question 13

What’s different about Titan and Earth

Answer 13

Titan’s liquid is not water, would have a different basis from Earth

Question 14

Fountains of hot mineral-laden water from under the sea floor support what?

Answer 14

Complex ecosystems