#907 What will happen to the Voyager spacecraft?
What will happen to the Voyager spacecraft? Unless they collide with anything, they will probably keep going for several billion years. Voyager 1 is currently 24.3 billion km away from…
What will happen to the Voyager spacecraft? Unless they collide with anything, they will probably keep going for several billion years. Voyager 1 is currently 24.3 billion km away from…
Are all stars inside galaxies? No. There are some stars that are not part of a galaxy. Stars can form outside a galaxy, or they can be kicked out of…
How thick is the atmosphere? The atmosphere is generally considered to be 10,000 km thick. Our atmosphere is made up of gas. It is 78% nitrogen, 21% oxygen, and one…
What is a geosynchronous orbit? It is an orbit that exactly matches the rotation of the Earth. A satellite in geosynchronous orbit goes around the Earth at the same speed…
Do other planets have tectonic plates? In our Solar System, Earth is the only planet with tectonic plates, but in other solar systems there will probably be planets the same…
Is a force field possible? In theory, there are several possibilities, such as warping space time, electric fields, directional lasers, a controllable plasma, a magnetic field, and others. We have…
What is the Fermi paradox? It is the fact that if life in the universe is so common, we should have found signs of it. Enrico Fermi was an Italian…
What is the Great Attractor? It is the theorized gravitational center of our Milky Way Galaxy and 100,000 other galaxies. The universe is expanding at a rate of 2.2 million…
How long do black holes last? Black holes will slowly dissolve, but it will take far longer than the length of our universe, so it has never been observed. There…
Is cryosleep possible? In theory, yes, but not for the length of time needed to travel anywhere decent in space. The idea behind cryosleep is to put astronauts into a…