it is forecasted to engulf our planet. "The Sun will swell to a size that surpasses Earth's orbit. Yet, Earth likely won't survive these 4.5 billion years and will definitely not be the Earth as ...

in that the sun will eventually inflate larger than Earth's orbit and engulf Venus and Mercury in the process. As the star transforms into a red giant, its mass will push planets to distant orbits ...

A massive 500,000-mile-wide (800,000-kilometer) coronal hole in the sun's atmosphere is unleashing a stream of fast-moving solar wind toward Earth, potentially supercharging auroras on Jan. 31 and ...

Scientists suggest Earth's inner core may have changed shape over the past 20 years, potentially affecting the planet's ...

Treats are in store for stargazers at both ends of the short summer nights this June. Evenings belong to Saturn, a beacon in the southwest. Not sure which object is the ringed planet? Look the ...