Some observers may have noticed a faint glow illuminating the darker portion of the moon—a phenomenon known as Earthshine or ...

While opposition itself is a one-night event, taking place on Sept. 21, Saturn's glow won't fade quickly. The planet will ...

The nationally recognized organization launched a multimillion-dollar campaign in 2023 for a larger, custom-designed building ...

Did you know that the current CO2 concentration in the Earth's atmosphere has peaked in the last million years? A further ...

To tell a Mars rover to turn left or an orbiter to change focus, mission scientists have to beam powerful transmissions ...

Titan's shadow will fall on Saturn in the early hours of Sept. 20, one day before the world shines at opposition in Earth's ...

Because of the sun's positioning in the days just before, during and after the equinox, those looking down east-west roads in Chicago and the suburbs will be able to see the sun framed by much of the ...

Is it a full moon tonight? Wondering what is the planet and bright star shining next to the moon? Here's what to know and how ...

Regulus, a distant star, Venus and our moon will be visible during a conjunction tonight, and how Californians can best see it.

Astronomers predict it will pass relatively close to four planets (but not Earth) and the Sun, then continue its cosmic journey. A Harvard professor made headlines theorizing our visitor is a ...

Here are the best space games that don't feel overwhelming, for anyone looking to explore the stars without doing mental gymnastics.

A new NASA mission will capture images of Earth's invisible "halo," the faint light given off by our planet's outermost atmospheric layer, the exosphere, as it morphs and changes in response to the ...