Mercury Is Tectonically Active & Shrinking
Images taken by the MESSENGER spacecraft have shown features on Mercury's surface that indicate that the planet is still tectonically…
What is Absolute Zero?
Absolute Zero is the coldest possible temperature, the point at which you can no longer extract any energy from a…
What is a Total Eclipse?
A total eclipses is an amazing sight, occurring whenever the Moon passes between the Sun and the Earth (or the…
Europa’s Venting Global Ocean May Be Easier To Reach Than We Thought
Today, NASA announced that images taken by the Hubble Space Telescope have shown more evidence of water plumes on Europa's…
Astronomy Cast Ep. 421: Space Games!
Visit the Astronomy Cast Page to subscribe to the audio podcast! We usually record Astronomy Cast as a live Google+…
Tears of the Hunter: Our Guide to the 2016 Orionid Meteor Shower
The month of October is upon us this weekend, and with it, one of the better meteor showers is active:…
How Can You see the Northern Lights?
The northern lights are an amazing thing to behold, and can be seen regularly from locations spanning from Siberia and…
Bright Binocular Nova Discovered in Lupus
A powerful explosion on an otherwise obscure star in the constellation Lupus is now bright enough to see in binoculars.
Drilling at Unfathomable Alien Landscapes – All in a Sols (Day’s) Work for Curiosity
Our beyond magnificent Curiosity rover has just finished her latest Red Planet drilling campaign - at the rock target called…
Why Are Stars Different Colors?
Like everything else in the Universe, stars come in a variety of shapes and sizes, and colors, and three of…