A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth ...

3I/ATLAS likely weighs more than 33 billion tons. The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously thought, astronomers say. A ...

The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously thought, astronomers say. A comet named 3I/ATLAS likely weighs more than 33 ...

A mysterious object hurtling through space has been identified as a rare “interstellar object,” only the third of its kind ever seen. In July, NASA reported its ATLAS (Asteroid Terrestrial-impact Last ...

Supporters already have won regulatory changes in Utah for so-called balcony solar systems, which provide a small boost of electrical power. Big solar energy projects are getting harder to build.

A NASA mission, IMAP, and two more spacecraft that will study space weather are traveling through space atop a single SpaceX rocket. By Kenneth Chang A SpaceX rocket launched on Wednesday morning ...

The Kauai Island Utility Cooperative is alerting its members to false and misleading claims by certain solar installation companies. KIUC said it has received reports from members saying that solar PV ...

A novel solar power project just went online in California’s Central Valley, with panels that span across canals in the vast agricultural region. The 1.6-megawatt installation, called Project Nexus, ...

Get your news from a source that’s not owned and controlled by oligarchs. Sign up for the free Mother Jones Daily. So when PG&E approached Gillogly about installing a solar- and battery-powered ...

On August 24, 2006, our solar system lost a planet. It wasn't by cataclysmic destruction, but rather by the vote of the International Astronomical Union, which declared that Pluto, considered the ...

Astronomers have uncovered a massive new trans-Neptunian object, 2017 OF201, lurking at the edge of our solar system. With an orbit stretching 25,000 years and a size that may qualify it as a dwarf ...