The earth (and humanity) would be very different without our smaller red neighbor. In A Nutshell Computer simulations show ...

A huge bar of iron has been discovered lurking inside the iconic Ring Nebula. The structure is enormous, spanning hundreds of ...

In the vast calm of the solar system, planetary orbits often appear orderly, stable, and insulated from the broader mechanics of the galaxy. Earth circles the Sun with regularity. The outer planets ...

A team of European astronomers has unveiled the existence of an unexpected and massive bar-shaped structure, composed ...

This NASA/ESA/CSA James Webb Space Telescope Picture of the Month brings us a scene from the distant universe. Pictured here ...

A Mars spacecraft has now been AWOL for more than a month. But NASA hasn't given up hope of restoring contact with the MAVEN ...

To land on the right foot on the Red Planet, European engineers have been dropping a skeleton of the four-legged ExoMars ...

Nearly 14 years ago, NASA’s Curiosity rover landed on Mars for a mission to explore the red planet and discover if it had an ...

NASA's Curiosity rover captured a panoramic image of Mars that resembles an Earthly sunset. For over a decade, the Curiosity rover has been exploring Mars for signs of past life. The rover took the ...

Andromeda and the Milky Way merge. NASA; ESA; Z. Levay and R. van der Marel, STScI; T. Hallas; and A. Mellinger Share Curious Kids is a series for children of all ages. If you have a question you’d ...

Humans love classifying things into different groups. Whether it is tiny single celled organisms or literal galaxies in space, humanity just wants to put each item into its own bucket to help ...

Thanks to Einstein’s relativity, time flows differently on Mars than on Earth. NIST scientists have now nailed down the difference, showing that Mars clocks tick slightly faster—and fluctuate over the ...