LightSail 2 is now marking three years of spaceflight, but is unlikely to celebrate a fourth anniversary.

The projected growth in the number of rocket launches will have a detrimental impact on Earth's climate and its protective ozone layer, a new study has found.

On June 27, 1997, NASA's NEAR Shoemaker spacecraft flew by an asteroid named 253 Mathilde. See how it happened in our On This Day In Space video series.

Never-before-seen microbes living deep beneath the permafrost at one of the coldest and saltiest water springs on Earth could provide a blueprint for life on Mars.

Alien life in the deep global ocean of a water world could receive its nutrients through a shell of high-pressure ice around the planet's core.

The moon will pass close to Mercury in the predawn sky on Monday (June 27). Find out how and where to see this skywatching event.

You can watch the five naked-eye planets align for free on a livestream that will be running Sunday (June 26).

Asteroid research and planetary defense is of great interest to scientists around the world, which is why June 30 marks international Asteroid Day.

At 468 days in space, Buzz Lightyear has spent the longest time ever in space on a single mission.

Director Ridley Scott's sci-fi classic "Blade Runner" celebrates its 40th anniversary in June 2022.