Perihelion is the point at which an orbiting body is closest to the sun. The word comes from Greek and literally means around ...

You're not imaging it. The sun has been rising later in Illinois following the winter solstice. But the days aren't getting ...

More objects are being launched into space than ever, and most are headed for low Earth orbit. This region of space has become increasingly crowded with launches from SpaceX and others that have ...

Despite the winter solstice being the shortest day, the sun has been rising later in the weeks following it. This phenomenon is due to the Earth's elliptical orbit and axial tilt, which causes a ...