The system is believed to be traveling at least 1.2 million miles per hour (1.93 million kilometers per hour), according to a ...

Hubble Space Telescope imagery Neptune has revealed that the planet's clouds are disappearing. Credit: NASA Goddard Space Flight Center ...

Astronomers may have discovered a scrawny star bolting through the middle of our galaxy with a planet in tow. If confirmed, ...

Known as planetary alignment, this rare event lets sky-gazers see six planets, including Neptune and Uranus, with a telescope ...

New research shows that star activity can distort exoplanet measurements, affecting size, temperature, and atmosphere ...

Temperamental' stars that brighten and dim over a matter of hours or days may be distorting our view of thousands of distant planets, suggests a new study.

Launched in 1990, the Hubble Space Telescope is a joint ESA/NASA project. It has become one of the most important science ...

For those playing along at home, space looks dark, even though the Sun is out there because the near-vacuum conditions don't ...

"Temperamental" stars that brighten and dim over a matter of hours or days may be distorting our view of thousands of distant ...

Five of the brightest planets will be visible to the naked eye. With help, you may even spot Uranus and Neptune.

As planets pass in front of their parent stars as viewed from Earth, they cause a tiny dip in the amount of starlight we ...