NASA said the comet will make its closest approach to the sun in late October, scooting between the orbits of Mars and Earth—but closer to the red planet than us at a safe 150 million miles (240 ...

Comet Neowise soars in the horizon of the early morning sky in this view from the near the grand view lookout at the Colorado National Monument west of Grand Junction, Colo., Thursday, July 9, 2020.

Comet Neowise soars in the horizon of the early morning sky in this view from the near the grand view lookout at the Colorado National Monument west of Grand Junction, Colo., Thursday, July 9, 2020.

A mysterious visitor from another solar system could be an alien spacecraft, according to a leading Harvard astronomer.

NASA astronaut Nichole “Vapor" Ayers captured a stunning photo of a Transient Luminous Event e bolt above a thunderstorm over ...