Venus, often called Earth’s “twin,” is a planet of extremes. Though similar in size, mass, and composition, Venus couldn’t be ...

Japan's Himawari-8 and Himawari-9 satellites, designed to study weather here on Earth, have also been quietly collecting ...

As Venus and Mercury exit the stage, a few remnants of the "planetary parade" will be visible after sunset. With Saturn already lost in the sun from Earth's point of view as it moves behind the ...

Supermoons only happen three to four times a year, and always appear consecutively. We have already had six full moons this ...

In February, stargazers enjoyed a rare occurrence: All seven of Earth's planetary siblings dotted the night sky at once. And later this year in August, four planets — Mercury, Venus, Jupiter and ...

The solar system has eight planets overall – Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Mercury is the closest planet to the sun and Earth is the third planet from the sun ...

In February, stargazers enjoyed a rare occurrence: All seven of Earth's planetary siblings dotted the night sky at once. And later this year in August, four planets — Mercury, Venus, Jupiter and ...