-
Asked by anon-209828 to Verity, Sergio, Nick, Maria, David, Annette on 12 Mar 2019.
-
Nick Werren answered on 12 Mar 2019: last edited 12 Mar 2019 3:06 pm
Definitely! Venus has a very close gravity to ours, whereas Mars has a gravity that’s about a third of ours.
Also there are loads of planets outside of our solar system that have a similar mass to Earth. If we want to go to another world and live there, gravity is important – Jupiter has a high gravity that would crush me and you if we went there!! Also if the gravity is too low, then it can make our bones move apart and create a lot of medical problems!
That’s one of the reasons why astronauts have to do a lot of exercise whilst they’re in space, and when they get home!
-
-
David Whitworth answered on 12 Mar 2019:
Absolutely, Venus has a gravitational force of 8.8m/s where Earth is 9.8m/s. Looking outside the solar system there almost certainly is, it is just a little hard to work out as they are soo far away from us. Being so far makes it really hard to study them. What we can do is guess at their mass and what they are made from with special telescopes and a lot of time looking at them, if we find one with a similar mass and size then we can expect it to have the same gravity as Earth. Working out the mass though is very very hard as we have to see its star wobble, what the mass of the star is and know if there are other planets there as well.
-
Maria Walach answered on 13 Mar 2019:
Yes! As was already said – Venus is similar, but it has a really toxic atmosphere so we wouldn’t be able to live there.. There are also lots of planets outside our own solar system, known as exoplanets and some of these are thought to have similar masses too, giving them a similar gravity. The problem with those is, that they haven’t been seen yet as our methods for finding them are not fine-tuned enough!
Comments