The first rocket ever sent to space probably carried bacteria or some other accidental passenger. But the first animals ever…
Our Earth keeps us very safe from a dangerous Universe that's always trying to kill us in new and interesting…
[/caption] The biggest stars in the Universe are the monster red hypergiants, measuring up to 1,500 times the size of…
Stars are mostly balls of hydrogen gas that came together from a nebula of gas and dust. They generate their…
[/caption] Head outside on a dark night and look up into the night sky. If you're away from the bright…
As you probably can guess, our Sun is an average star. Stars can be bigger than the Sun, and stars…
[/caption] The mass of a star defines its lifespan. The least massive stars will live the longest, while the most…
Think you know everything there is to know about stars? Think again! Here's a list of 10 interesting facts about…
[/caption] The color of a star comes from the temperature of its surface. The hottest stars are blue, cooler stars…
[/caption] White dwarf stars are the corpses of stars; what happens once they've used up all their fuel and lack…