In late May and early June, many people in the central and southeastern United States saw a bright red sun in the sky. Some ...

People always want to know what will happen to Earth when the sun eventually swells up as a red giant. For one thing, the ...

Here’s how it works. Mars is the fourth planet from the sun and has a distinct rusty red appearance and two unusual moons. The Red Planet is a cold, desert world within our solar system.

The small world was found during a search for the hypothetical Planet Nine, and astronomers say the next time it will reach ...

But this assumes that nothing affects the Solar System in the meantime, and that is not a certainty. As we travel around the ...

Mars will appear its biggest and brightest this month when it reaches its closest position to Earth while simultaneously being opposite the sun. The Red Planet will be at its closest point to ...

Mars, the fourth planet from the sun, is a dry, rocky world. Its famous red color has earned it the nickname the Red Planet. Mars has fascinated people throughout history, and today, it is one of ...

A giant conundrum has been found orbiting a teeny tiny red dwarf star just a fifth of the size of the Sun. Such small stars ...

WD 1856+534b—a freezing world with a surface temperature of -125 degrees Fahrenheit—exists where planets are normally scoured ...

Our new study may offer an answer. Using seismic data from NASA’s InSight mission, we uncovered evidence that the seismic ...