The sun's light feels pretty good, doesn't it? Fool! That warming light is the sun's method of destroying you. Using its light, it is slowly forcing you to fall inwards, where you will burn. Burn! This trap is the result of the Poynting-Robertson Effect, which causes all the objects in the solar system, especially the…

The best place to watch the stars isn't on Earth, but just outside, where the atmosphere doesn't get in the way of the view. Photographer Alex Rivest spliced together images taken from the International Space Station, enhancing the natural brilliance of the lights and giving us a peek at how astronauts see the…

Exoplanet Kepler-19b orbits its star in ways that violate the laws of physics, speeding up and slowing down its orbit for no apparent reason. The only explanation is a second, hidden planet...making it the first "phantom" exoplanet ever found.

We know that Saturn's moon Titan is home to everything from ice volcanoes to methane lakes to possibly even very simple forms of life. But its biggest secret is still hidden from sight: a giant subterranean ocean, possibly of water.

Iain M. Banks' novel Consider Phlebas helped recharge the genre of space opera, and launched the Culture series. And now you can read it for just 99 cents.

This is a historic moment - for the first time ever, a probe has seen the solar system's innermost planet from orbit, and this is the photo it took just a few short hours ago.

There were many reasons why Pluto got demoted to dwarf planet status, one of which was that it couldn't clear its orbit of asteroids and other debris. But Earth's orbit is also crowded...too crowded for Earth to be a planet?

Fifty years ago today, the Soviet Union launched the Korabl-Sputnik 2 spacecraft—known as Sputnik 5 in the west—carrying two dogs named Belka and Strelka, along with mice, rats and flies into space. More surprising? Everyone came back alive.