backtotheland76
backtotheland76 t1_iwqwma3 wrote
Reply to What is your favourite space movie? (Hope this isn’t to shallow for this sub) by Oztravels
Firefly is my all time favorite. I'm not worried about the science for movies but the story. The expanse is my favorite series
Sure appollo 13 was probably the most accurate but science fiction is supposed to be some authors idea of what the future will be
backtotheland76 t1_ivzvr4s wrote
Reply to Climate change is extending the lifetime of space debris. A new study found that the density of the thermosphere will decrease by 30-35% at an altitude of 250 miles over the next few decades. That loss of drag would increase the lifetime of space debris in LEO by 30% compared to 2000. by clayt6
That does it! We MUST do something about climate change!
backtotheland76 t1_iwvrj41 wrote
Reply to Mars was once covered by 300-meter deep oceans, study shows by magenta_placenta
I've always wondered if Mars once had a lot of water wouldn't that weigh a lot. Enough to increase it's gravity to the point of retaining all that water? Doesn't that go against current theories about how Mars lost its water. Or would all that water not really add up to much compared to the overall size of the planet.