Lunar minerals generate the rust mineral hematite when bombarded with high-energy oxygen particles, simulations show.

NASA is set to launch three spacecrafts Tuesday with the goal of unlocking the mysteries of solar weather at the edge of our solar system.

A small asteroid has been quietly following the Earth around the sun for decades, and this "quasi-moon" is expected to stick ...

Earth has a newly discovered—albeit temporary—companion in its journey around the sun. In research published this month in ...

The arrival of mini moon could draw the attention of private companies and agencies focused on asteroid mining ...

Earth is the only planet in our solar system with a single moon, making it a rare phenomenon for a planet of its kind.

Saturn will put on a show for professional and backyard astromers alike, and be the brightest and closest it has been to ...

A new moon is when the moon shares the same celestial longitude as the sun; the two bodies are said to be in conjunction.

The moon and Venus will shine vividly alongside a bright star in the early morning in a celestial rendezvous that should be visible across the U.S.

Ron Howard and his crew — including Tom Hanks, Brian Grazer, Ed Harris, Kevin Bacon, Gary Sinise, Kathleen Quinlan and Clint ...

Saturn is about to make its closest approach to Earth, and that means you might be able to see its rings — if you have a telescope, that is.

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 ...