Japan's Smart Lander for Investigating Moon (SLIM) mission failed to respond to a signal sent Monday — but all hope is not lost.

Rocket Lab will launch the second of two cubesats for NASA's PREFIRE climate change mission tonight (May 31), and you can watch the action live.

Astronomers have detected giant, magnetic stars outside the Milky Way for the first time. These infant stars in the Magellanic Clouds could reveal details of early stellar evolution.

NASA's new X-59 supersonic jet has successfully completed its Flight Readiness Review, marking a pivotal step towards its first flight.

China's Chang'e 6 moon mission is studying landing sites on the lunar far side for accessibility ahead of a planned touchdown attempt this weekend.

There is an instant feel of quality in this rugged and easy-to-use Opticron Oregon 4 PC Oasis 10X42 monocular.