Space

Annie Glenn, widow of the late NASA astronaut and U.S. Senator John Glenn — the first American to orbit the Earth — has passed away at the age of 100, NASA announced yesterday.

The U.S. Space Force's mysterious X-37B space plane successfully launched on its sixth mystery mission from Florida today (May 17).

China's FAST radio telescope has uncovered the first known pulsar in the star cluster Messier 92. The super-fast pulsating object forms one part of an eclipsing binary.

There's a microwave power experiment heading to space Saturday (May 16) aboard the Air Force's secretive X-37B spaceplane. Researchers hope it could lead to a new global power source.

Could aliens that breathe helium and hydrogen live on exoplanets throughout the cosmos?

There's an extensive system of haze layers in the bizarre hexagon on Saturn, a new study has found.

Researchers figured out why this galaxy looks like an enormous X in invisible radio light.

Two entirely different ways of "weighing" the cosmos are producing disparate results. The discrepancy could be a sign that physicists will need to revise the standard model of cosmology.

Scientists suspect they have identified an intriguing new alien planet in a particularly roundabout way.

The 19.6 ton (17,800 kilogram) body of a Chinese rocket slammed into the planet's atmosphere today (May 11). It was the biggest such incident since 1991.

The Martian surface is a radiation hot zone. But ancient lava tubes might offer explorers safety from the cosmic bombardment

The new documentary "Spaceship Earth" breaks the mystery of the Biosphere 2 experiment wide open, revealing the facts in a story that feels more like science fiction than reality.

Appropriately enough, the name of Elon Musk's newborn son contains a tribute to pioneering aerospace tech.

Russia hasn't been to the moon since 1976, but the country hopes to soon pick up where it left off.

The sixth X-37B mission is scheduled to lift off from Florida's Cape Canaveral Air Force Station May 16, Space Force officials announced Wednesday (May 6).

A new paper by physicist Edward Witten proposes hunting Planet 9 using a fleet of laser-launched probes like Breakthrough Starshots'.

A newfound black hole may be the closest black hole to Earth, and you can spot its cosmic home in the night sky without a telescope.

Photographer Andrew McCarthy photographed the demarcation between the moon's light and dark sides for two weeks to create this unbelievably crisp image of our satellite's Earth-side craters.