Constellations are groupings of stars that, when viewed from Earth, form distinct shapes. Constellations have been around since the dawn of recorded history. In this section you will learn all about constellations and their histories.

Icy Comets Orbiting a Star Like Our Sun Spotted for the First Time

Aquarius

Aquila

Observatories are structures designed and equipped for observing astronomical events. In this section you will learn all about famous observatories and the role they play astronomy.

The Hitomi Satellite Briefly Glimpsed the Universe, Then Died — What Happened?

We're Now One Step Closer to a Gravitational Wave Space Observatory

Anti-asteroid Space 'Sentinel' Could Soon Patrol the Planetary Skies

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.

Why Do Stars Twinkle?

What Do You Get When Two Neutron Stars Collide?

Astronomers Determine When 'Cosmic Dawn' Happened

In the Solar System Channel, you can explore the planets and celestial objects around our own sun. Learn about topics such as Mars, Jupiter and the Moon.

The Great Red Spot May Expose Jupiter's Watery Secret

Heads Up Stargazers! Two Comets Passing Close to Earth in September

The Perseid Meteor Shower Is Back — Here's What You Need to Know