For this reason black holes are invisible to the eye, as lightless as the empty, dark space surrounding them. Scientists know ...

It’s surprising that humans have maintained a continuous presence in space for so long, and on a structure so complex. On a clear night, it looks like a bright, fast-moving star. It’s surprising that ...

An curved arrow pointing right. Space is so unfathomably large and so unbelievably weird, that it can sometimes be difficult to convey basic facts. For example, you can fit all of our solar system ...

Sound as we know it does not exist in space. That’s because, on Earth, sound mainly travels to our ears via vibrating air molecules. Because space is a vacuum, meaning there is no matter at all ...

For more than 10 years, Cassini observed Saturn and its family of strange moons, providing us with a window into the unique worlds in our outer solar system. Here is a list of Saturn's 63 ...

Science is full of weird and wacky things ... Some users also shared some cool space facts. For instance, u/Public_Breath6890 shared that 99.85 percent of the mass in our solar system is ...