Look for the Leo half-moon high in the sky at sunset tonight. This waxing first-quarter moon marks a midpoint — positioned ...

What would be the consequences of slicing our Moon in half? Samuel Alito Comment During ... from New Mexico in 1948 captured first photo of Earth from space Pope Francis’ Death Triggers ...

This image provided by NASA shows an enhanced color view of Pluto’s big moon Charon captured ... soon plunge uncontrolled ...

With recent cuts to Mars Sample Return, China will lead the charge to Mars and to the moon. Credit ... and the U.S. already won that race a half-century ago. The U.S. now should capitalize ...

The preliminary version of President Donald Trump’s budget proposal to Congress, known as a “passback,” would cut the ...

Mars will skirt the edge of M44, also known as the Beehive Cluster. Mars will pass within a mere 37 arcminutes of this star cluster. Look to the South at 9:00pm. A simple pair of binoculars will ...

The shower will peak during pre-dawn hours in early May, as fast-moving meteors trail across Earth's atmosphere, thanks to ...

The eta Aquariids are just the first of two meteor showers that we see each year from Halley's Comet. Most comets tend to ...

Meanwhile, astronomers are keeping watch for a rare nova—a sudden explosion of a distant star—that could appear to the naked ...