High in the Andes Mountains of northern Chile, something extraordinary is happening. Perched on the peak of Cerro Pachón at ...

Get ready to feel small: The sun is 99.8 percent of the mass of the solar system. Here are more colossal facts about our star.

AN INTERSTELLAR space rock zooming through our solar system may be the oldest comet ever seen by humans, according to ...

PJM should take responsibility for its part in Ohio's power shortfalls and soaring prices. Instead, it spreads misinformation ...

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...

A fascinating glimpse into how a solar system like our own is born has been revealed with the detection of planet-forming ...

Trump has committed to increasing U.S. energy production, particularly fossil fuels. He signed an executive order Monday ...

Pluto once held its place proudly as the ninth planet in our solar system,a distant, icy world on the edge of the cosmic frontier. But in 2006, everything changed. This in-depth explainer unpacks the ...

After a vote-a-rama session that broke the record for most votes on amendments and procedural motions, Trump’s budget bill ...

Scientists believe the Milky Way contains up to 400 billion stars and at least as many planets. The largest galaxy known, IC 1101, has more than 100 trillion stars. Step outside on a clear night and ...

Installing solar panels for your home can be a long-term investment that pays for itself in the long run or just a step toward greener living through sustainable energy.

On this week's traveling book club, the librarians in Lost Nation, Iowa, have a book for kids, an adult fiction mystery and a ...