I’m a Scientist is like school science lessons meet the X Factor! School students choose which scientist gets a prize of $1000 to communicate their work.
Scientists and students talk on this website. They both break down barriers, have fun and learn. But only the students get to vote.
This zone is the Boron Zone. It has a range of scientists studying all different topics. Who gets the prize? YOU decide!
Stars can be very different sizes.
Most stars in our galaxy are probably half the size of the Sun, but there some which are much bigger. We usually talk about stars in terms of how much they weigh, so the biggest stars are up to about 200 times heavier than the Sun! The smallest stars are only one tenth the mass.
There are some stars which weigh the same as the Sun, but are really dense. The same mass packed into something only a bit bigger than Earth!
And stars can grow too. They will all expand as they get older, but I’m assuming that you mean “put on weight”? Stars can do that too. All stars gain weight when they are very young (like humans!) but some stars form in pairs, which, if they are close enough together, will sometimes exchange mass. One star will lose mass and the other will gain it!
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