The Kepler space telescope has shown us that we live in a galaxy full of Earth-sized planets.
The European Space Agency's Venus Express orbiter discovered evidence of volcanic eruptions that occurred as recently as several thousand years ago.
Some simple sugars detected by astronomers, glycoaldehydes, are thought to be the basic building blocks of life.
Pluto was demoted to dwarf planet status, but it still has moons. This new moon, called P5 for now, is the fifth moon found orbiting Pluto.
You've heard about comets and asteroids in space. What is the different?
Did you know it seems we're discovering a new exoplanet every week?
Solar tornadoes are solar gases swirling in monstrous formations deep within the sun's atmosphere, measuring the width of several Earths.
Watch our nearest planetary neighbor 'transit' across the sun on Tuesday. You're going to want to some good eye protection.
If you've ever glanced skyward, you've probably noticed the sheer numbers of stars. Some are tiny, barely visible points. Others radiate strong white light.
Often problems, whether in math, science, or daily life, are hard to solve because we're not asking the right questions.