Fluctuating levels of radioactive iron-60 suggest the solar system recently entered a cosmic cloud.

The Hubble Space Telescope is orbiting nearly 300 miles over the Earth. It has transformed our views of the universe since ...

A section of ice core extracted from Antarctica. (Alfred Wegener Institute/Esther Horvath) This glittering spaceship Earth ...

Every 26 months, Earth passes directly between the Sun and Mars. This alignment, known as the Mars opposition, is when spacecraft set a course for the Red Planet. The astronomer behind the recent ...

With a splashdown in the Pacific Ocean on Friday evening, the epic Artemis II moon mission came to an end. Americans have been tracking the progress of the four astronauts — commander Reid Wiseman, ...

The Artemis II astronauts have shared stunning new images of Earth from space. These photos are reminiscent of the iconic "blue marble" picture from the 1972 Apollo 17 mission. The 10-day mission will ...

The four astronauts on the Artemis II mission that took them around the moon spent years preparing for the historic flight, practicing operating the Orion spacecraft, learning how to observe the ...

NASA shut down one of Voyager 1’s science instruments to conserve dwindling power and keep the nearly 49-year-old spacecraft operating as it continues its journey through interstellar space more than ...

NASA's Artemis II mission has sent four astronauts on a 10-day journey around the moon. The mission is the first in over 50 years to send humans to the vicinity of the moon. The crew includes the ...

"I found myself noticing not only the beauty of the Earth, but how much blackness there was around it." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

This Earth Day, we reflect on our home planet and look at Earth from space through history. It's "like watching sunset at the beach from the most foreign seat in the cosmos," Artemis 2 commander NASA ...

Astronauts and robotic spacecraft have been capturing profound photos of Earth for decades. Earth Day is an annual celebration on April 22 focused on environmentalism and conservation. Iconic images ...