Planet Detective

Planet Detective 

What are reasons Mercury lost most of its atmosphere ?
There is a very thin layer of atmosphere around the planet.  It always getting " blown away "  into space by the pressure of the sunlight and by the solar wind.

Compare how close Mercury & the Earth are to the sun.

Mercury's distance from the sun is 57.717  million km.

Earths distance away from the sun is 151.21 million km.

Compare how much mass Mercury & the Earth have.
Mercury's mass is 3.285e+23.   
Earth's mass is 5.972e+24

How does not having an atmosphere affect the temperature ?
The clouds reflect on the heat of the sun away from the planet.  The winds circulate heat from hot places to cool places.  " Greenhouse "  Gases hold in the heat of the planet.

Explanation Writing - Mars Rover

Explanation about Mars Rover

I am explaining about the Mars Rover.  There will be facts,  comments and more!

Do you want to find out a load full of information about the Mars Rover ?  Well then keep reading this blog post.  

The four Mars Rovers names that have already been to Mars are Sojourner,  Spirit,  Opportunity and Curiosity.  Curiosity weighs about 900 kgs and is about 3 metres long,  which makes it the heaviest and longest  on Mars.   The Perseverance will be heading to Mars soon.   In 2012,  it took 253 days to reach Mars.   

Humans can live on Mars with a lot of supplies.  You would need a lot of supplies because it takes about a year (150 - 300 days ) to get to Mars.  You would need a whole bunch of food,  lots of clean clothes,  water and a bunch more.   

Indian is now the first country to reach Mars on their first attempts.   The Prime Minster Modi,  who monitored the probes progress from it's mission control centre in Bangalore,  said of the mission that " odds were were stacked against us "

Becoming A Martin

Becoming A Martin

Question 1:  When can a mission to Mars ( or from Mars ) Happen ? Why ?  

Every 26 months

Question 2:  What are two geological features of Mars ?

Mars is very dry and Mars is also red

Question 3:  What is one possible solution from the story about oxygen on Mars ?

On Mars,  the atmosphere is 95 %  carbon dioxide.  Breathing this would mean certain death because the carbon dioxide would replace the oxygen in your red blood sells.  You would last around 2 minutes.

Question 4:  If it doesn't rain on Mars,  Where does the water come from ?

Water is found as ice in the polar ice caps,  but these ice caps are covered in a thick layer of frozen carbon dioxide.

Question 5:  How will people get food on Mars ?  What is a possible solution ? 

If settlers brought their own food,  it would need to last for 26 months until the next supply rocket arrives.  Martian crops could also be grown in special nutrient-rich water.