Stars

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.

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The Milky Way Is a Cannibal

A stunning accusation has been made: About 10 billion years ago, a small galaxy strayed too close to ours, so our galaxy ate it.

Nuclear Pasta Is the Super-Macaroni of the Universe

This stellar noodle is the strongest material in the cosmos!

Why Do Stars Twinkle?

And while we're at it, why don't the other planets in our solar system seem to twinkle?

What Do You Get When Two Neutron Stars Collide?

A tiny black hole or a more monstrous neutron star? Astronomers are on the case.

Astronomers Determine When 'Cosmic Dawn' Happened

Plus, a bonus finding on dark matter!

Tiny Yet Mighty: Neutron Stars May Be Ravenous X-ray Dazzlers

Some neutron stars may have a pretty amazing party trick up their stellar sleeves.

This Brown Dwarf Isn't a 'Failed Star' — It's a Magnetic Powerhouse

Neither massive planets nor tiny stars, brown dwarfs are entirely different substellar curiosities that possess qualities of both.

Kilonovas Are Some of the Biggest, Baddest Stellar Blasts in Space

Get ready for the most powerful electromagnetic explosion the universe has ever known.

Triple Star System Could Be a Stellar Cocktail Shaker for Life

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.

This Is How We'll Detect Life on Distant Exoplanets

We might be only a few years away from seeing whether potentially habitable worlds are inhabited. How cool is that?

Milky Way, How Do You Zip Through the Universe Like That?

Scientists have a new idea, and it has to do with gravitational attraction and repulsion.

Mark Your Calendars for These 2017 Space Events, Astronomy Fans

A total solar eclipse and a comet flyby are on the list of fascinating astronomical happenings 2017 has in store.

Jupiter-sized Planet Discovered Orbiting Two Stars

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.

Spotted: Early Planetary Formation Around a Binary Star System

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.

Here's What Scientists Just Determined About the Moon's Influence on Rainfall

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.

Astronomers Investigating Planetary Birth Make Discoveries Around Baby Stars

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.

Dead Galaxies Indebted to Dark Matter

We'll give you yet another reason why dark matter is cooler than visible matter.

10 Superstitions About Stars

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.

Could the power of a neutron star be harnessed?

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.

What's a double pulsar?

A single pulsar is fascinating enough, but as a set, these rapidly rotating neutron stars help scientists figure out mysteries of the universe.

Could a planet exist without a host star?

It's not uncommon for planets to wander alone through the universe like big, sullen teenagers. But how do they end up flying solo, and could they still harbor life?

Could a gamma-ray burst wipe out all life on Earth?

When a huge star collapses, it releases massive amounts of radiation in concentrated streams. If one of those streams hit Earth, it wouldn't be pretty. But where should we put "gamma-ray bursts" on our list of anxieties?

How a Supernova Works

A dying star can explode with the force of a few octillion nuclear bombs and create any element in the universe. But why do stars go supernova?


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