What, or when, would aliens see, if they looked at the earth?
Answers to Space Science Questions
Answers to questions about space science, astronomy, rockets, planets, galaxies, stars...
Looking back through time to learn about the structures which populate the universe...
A well composed question...
How would things have played out differently?
A question that only gets bigger by the day...
Could our Moon bases be made of old satellites?
The maths behind nuclear armageddon on a the gas giant...
Can you grow an infinitely dense dot?
Would gravity or mirrors be your best bet?
The molecules floating in the void above...
What do these ripples in space time mean for us?
Weighing up the costs of exploring the cosmos...
Does life require water or a different solvent?
What other impacts will it have on the human body...
Would gravity make taking a shower on the moon problematic?
Do balloons have a role to play as we explore the stars?
What processes make planets spherical and mountains pointy?
Why don't stars run out of fuel?...