Experts simulated a rush to deploy solar geoengineering against global warming. The science was the least of their problems.

What if instead of shining brightly for another 5 billion years, the only star in our Solar System turned into a dark and ...

Replace the Sun with a red giant and there would be almost no time to react. The transcript says the star could be 200 times ...

A new study reveals how scientists can identify previously unseen solar activity and build more accurate models of the Sun's ...

Flat Earth theory can be tested without relying on space photographs or one institution. Several independent observations ...

Earth and Mars grew up as neighbors around the young Sun, but they may not have been built the same way. Most of Earth’s mass ...

Scientists believe there are planets outside our solar system where life is even more abundant and sustainable.

Earth's shape can be tested in surprisingly simple ways without relying on space photographs. The strongest part of the ...

If there were no planets other than Earth, would Newtonian mechanics have remained undiscovered?In conclusion, if there were ...

As far-fetched as it may seem, quirks of orbital mechanics could allow hundreds of planets to be packed around a star ...

You've pulled up your horoscope and have a rough idea of what the planets, signs, and houses mean. But when faced with 10 ...

NASA's probe captured a mysterious object soaring near the sun. It has sparked claims of a 'UFO mothership' traveling through ...