Earth's Moon: NASA's Galileo spacecraft took this image of Earth's Moon on Dec. 7, 1992, on its way to explore the Jupiter system in 1995-97. The Moon is Earth's only natural satellite.

Your weekly horoscope for February 16-22, 2025, includes the Sun entering Pisces and Mercury in Pisces square Jupiter in ...

The four-planet lineup that began in January concludes by mid- to late February, as Saturn sinks increasingly lower in the sky each night after sunset, according to NASA. While Mercury will briefly ...

ESA's Solar Orbiter captured views of the planet Mercury passing in front of the Sun. Multiple instruments aboard the ...

The new Central Square Theater production brings the history of women aviators in America to life.

Tonight starts a great week of star gazing. Here's when to watch the full moon next to Venus, and a rare planetary parade ...

To get somewhere in outer space, you can’t exactly drive in a straight line. Orbits are tricky things, and sending a probe to ...

The U.S. Naval Research Laboratory (NRL) marks a major milestone with the 20th anniversary of the Mercury Pulsed Power ...