Californians can glimpse up to 15 meteors each hour under cloudless skies while the Lyrid meteor shower is underway. The ...

The University of Hawaii astronomer’s interest in habitable worlds began at a geothermal field in Iceland, where she and a ...

A dazzling celestial display is set to light up the night sky this April as Earth drifts through a dusty trail left by an ...

Scientists are using an array of instruments to detect other planets, some of which may harbor life—and others that most ...

(One AU is the average Earth-Sun distance of 93 million miles [150 million kilometers]). Comet Gröller tops them all in terms of its closest approach to the Sun, or perihelion, which is the most ...

In late 2024, astronomers spotted asteroid 2024 YR4 on a trajectory that could potentially threaten Earth. This observation ...

The threat from near-Earth asteroid 2024 YR4 may have subsided, but discoveries of other hazardous space rocks are set to ...

Ellipses are defined as curves that surround two focal points. At any point on the ellipse, the sum of the distance to both ...

Astronomers believe that 14,000 undiscovered near-Earth objects like asteroids, large enough to cause damage, could be in space. Recently, NASA was tracking a large asteroid flying past Earth ...