For observers on Earth, the sun appears as a bright, familiar disk—but what we see is only half the story. Like the moon, one ...

Each May, nature lovers get out of bed early to experience the seasonal wonder of birds singing, as the sun rises above the ...

Each May, nature lovers get out of bed early to experience the seasonal wonder of birds singing, as the sun rises above the horizon to take part in ...

The space rock is expected to make its closest approach at around 848,000 miles from the Earth, according to NASA.

Big news from the world of auctions, where what might well be the single largest astrolabe on Earth is up for sale. And what, ...

Earth Day started in the 1970s. Here’s an Earth Day fact everyone should know: Earth Day was first observed on April 22, 1970 ...

NASA says of Apophis passing by that it is likely "an event like this has not happened at any time in recorded human history.

Coloradans who look up at the night sky this Earth Day could catch a glimpse of two celestial phenomena. Colorado astronomy ...

Scientists have found a way to identify magnetic fields on the far side of the sun, a region that cannot be seen from Earth.

Earth’s magnetic field shields our planet from dangerous solar energy and damaging cosmic radiation, while the gravitational ...

Chicago has four seasons (or more, depending on who you ask), but what exactly makes the seasons change throughout the year?

Acting as stellar archaeologists, scientists have found fossilized magnetism on long-dead white dwarf stars, which may help ...