Stars are celestial bodies made up of hot gases. Stars radiate energy that comes form thermonuclear reactions. In this section you will learn all about stars and their importance in the universe.
Polaris, also known as the North Star, is almost exactly over the celestial North Pole, making it extremely useful for navigation (and for making wishes on, as well).
So what does that mean for good ol' Earth someday?
It's tricky to see the true shape of the Milky Way when you're stuck inside it. So how did scientists figure it out?
In this stellar nursery, firstborn stars are ruthless.
It is a mind-blowing amount.
A stunning accusation has been made: About 10 billion years ago, a small galaxy strayed too close to ours, so our galaxy ate it.
This stellar noodle is the strongest material in the cosmos!
And while we're at it, why don't the other planets in our solar system seem to twinkle?
A tiny black hole or a more monstrous neutron star? Astronomers are on the case.
Plus, a bonus finding on dark matter!
Some neutron stars may have a pretty amazing party trick up their stellar sleeves.
This isn't your run-of-the-mill supernova.
Neither massive planets nor tiny stars, brown dwarfs are entirely different substellar curiosities that possess qualities of both.
Get ready for the most powerful electromagnetic explosion the universe has ever known.
Astronomers have discovered a life-giving chemical in a star system located 400 light-years away. Now we just have to wait and see what arises from the cosmic mix.
We might be only a few years away from seeing whether potentially habitable worlds are inhabited. How cool is that?
Scientists have a new idea, and it has to do with gravitational attraction and repulsion.
This is the largest-ever planet found in orbit around a binary star system, and like our own solar system neighbor, is a gas giant that probably has moons.
And you thought it was tough deciding which family to visit during the holidays. We just identified two stars in the process of forming a planet – or a planetary system.
Our moon has the power to influence how much rain we get on Earth. The effect is too tiny to notice, but still: mad respect, Moon.
Over billions of years, the universe has produced a lot of worlds. How does it happen? Astronomers are studying young stars and the exoplanets forming around them.
We'll give you yet another reason why dark matter is cooler than visible matter.
These days, we may take the stars for granted, but it's not hard to imagine the wonder early humans must have felt gazing up at those inexplicable points of light. Naturally, superstitions were bound to develop — some more fortuitous than others.
Relying on a collapsed star to power our lives on Earth might seem like a good solution to our energy crisis, but there's just one tiny problem: The process might be lethal.
A single pulsar is fascinating enough, but as a set, these rapidly rotating neutron stars help scientists figure out mysteries of the universe.
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