New measurements of radio galaxies reveal that the solar system is racing through the universe at over three times the speed ...

Portal Systems' new Supernova satellite will use sunlight and a special 3D printed thruster to heat ammonia to propel itself ...

The quiet arrival offers another indication that the sun is moving into the declining phase of its 11-year cycle.

As this month's string of powerful X-class solar flares sparked brilliant auroras that lit up skies across an unusually wide ...

Earlier this month, Google researchers released a paper about “Project Suncatcher,” the company’s research “moonshot” to ...

A research team in Japan has created a groundbreaking Milky Way simulation that follows more than 100 billion stars with a level of detail that was once thought impossible.