Cotton candy clouds in the Martian middle atmosphere may owe their life to dying meteors.
Despite signs that they are at the end of their lifetime, some galaxies may continue to produce stars, contrary to expectations.
The mysteriously quiet behavior of the Milky Way's supermassive black hole may be influenced by magnetic field lines.
Most of the star nearest to Earth are red dwarfs, but they are too dim to be seen with the naked eye.
Beyond Neptune, the Kuiper Belt is a vast region of icy objects called Kupier Belt Objects (KBOs), including dwarf planets Pluto, Eris, Maumea and Makemake — and possibly a true ninth planet.
The transformation of a water-rich Venus to an overheated world may be preserved in its complex geological features.
For over a decade, a warped disk around a young star puzzled astronomers — but new research suggests explanations for two of the mysteries it poses.
Observations of the most distant galaxy ever identified revealed traces of oxygen from at least one previous generation of stars, a sign that star formation got off to an early start.
IBEX is helping astronomers figure out where the edge of our solar system ends and the rest of space begins.
Over the course of 11 years, Stardust visited an asteroid and two comets and sent pieces of space matter back to Earth.
As they prepare for their first lap around the Milky Way, our galaxy's nearest neighbors have shown a dramatic increase in star formation.
Although one of the twin spacecraft is no longer in contact with Earth, NASA's STEREO mission continues to provide insights about the sun.
Scientists have calculated that Earth is 4.54 billion years old, with an error range of 50 million years.
A beautiful image of the Milky Way's closest galactic neighbor provides insight into how stars form.