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.
What Are the 'Dog Days of Summer'?
How to Find Orion's Belt in the Night Sky
Astronomers Tell You How and Where to Best View Meteor Showers
Shooting the Stars as an Astrophotographer
Stellarium Is the Free 'Planetarium' for Your Computer
The Hitomi Satellite Briefly Glimpsed the Universe, Then Died — What Happened?
Neptune Is at Opposition, But What Does That Mean?
What Are the 8 Phases of the Moon, in Order?
Why August's Moon Is Known as the Sturgeon Moon
Aldebaran is not just the brightest star in the constellation Taurus, it's also the 14th brightest star in the sky.
Star-gazers gasped when they saw how much Betelgeuse dimmed in 2019 and the reason wasn't clear. Even though it's back up to full strength, how long will it be before it explodes? We haven't seen a supernova in over 400 years.
Comet NEOWISE comes by only once every 6,800 years. But it will be visible to anyone with binoculars or even to the naked eye. Here's how to spot this rare event.
Astronomers used Hubble's full range of imaging to dissect wild 'fireworks' happening in two nearby young planetary nebulas.
It is a mind-blowing amount.
This stellar noodle is the strongest material in the cosmos!
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.
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.