Today #365DaysOfAstro explains how many stars there are. How many can you see with your eyes, with binoculars or a small telescope? How many stars in the Milky Way? How many in the entire Universe?
We hear that black holes absorb all the light that falls into them. And yet, we hear of black holes shining so brightly we can see them halfway across the Universe. What’s going on? Which is it?
Since telescopes let us look back in time, shouldn’t we be able to see all the way back to the very beginning of time itself? To the moment of the Big Bang?
Have you ever wondered how old the Earth is? How early scientists tried to get an answer for this puzzling problem? And how modern science has finally given us an answer by looking at meteorites? More at #365DaysOfAstro
Today podcast will tell you what is the biggest star in the Universe, as well as the most massive star, and explores the limits that stars can reach. More at #365DaysOfAstro with @fcain
Look at those astronauts, flying through space without a care in the world. But how can they be floating when there’s gravity pulling at them in every direction?
In science fiction, wormholes are a method often used to travel great distances across space. Are these magic bridges really possible?
What temperature do astronauts experience? What about Pluto, or the depths of space. What’s the coldest possible temperature space can get?
It seems like the good times will go on forever, so feel free to keep on wasting energy. But entropy is patient, and eventually, it’ll make sure there’s no usable energy left in the Universe.
We know trips in space will take a long time. Can we go to sleep for the journey and then wake up when we arrive?