The Quadrantid meteor shower peaks in early January, offering dazzling fireballs and up to 120 meteors per hour.

St. Louis County Prosecuting Attorney Melissa Price Smith in one of her first interviews said she will run for the elected office in two years — and she intends to ...

While previous studies have analyzed this possibility by focusing on the infrared spectrum, a new study expands the possible ...

Its highly elliptical orbit around the sun brings it as close as 1.03 astronomical unit (AU) to our home star and as far out as 10.37 AU. (One astronomical unit is the average distance between ...

A sphere which had a radius of 1 astronomical unit (the average distance between Earth and the sun) would require more material than exists in the entire solar system. It is far more likely that ...

The energetic flare, which lasted approximately three days and suggests an emission region of less than three light-days in size (~170 AU, where 1 Astronomical Unit is the distance from the Sun to ...