Sky This Week is brought to you in part by Celestron. Friday, December 12Ganymede reappears from occultation behind Jupiter ...

Clocks on Mars tick faster by about 477 microseconds each Earth day, a new study suggests. This difference is significantly ...

Can India overcome years of delays to finally send its own spacecraft astronauts into orbit? That depends on crucial launches ...

The phenomenon of a Full Moon arises when our planet, Earth, is precisely sandwiched between the Sun and the Moon. This alignment ensures the entire side of the Moon that faces us gleams under ...

When is winter? Weather forecasters in the Northern Hemisphere will tell you Dec. 1 through the end of February, which is ...

Discover how the International Space Station was built, from Zarya and Unity in 1998 to Destiny, helping you understand each ...

Kim officially became an astronaut in 2017. Expedition 72 and Expedition 73 marked Kim’s first visit to the ISS, where he ...

A new research collaboration that fuses fashion and science is set to send bacteria into space—and the outcomes could create ...

A building-sized asteroid had a 1-in-32 chance of hitting Earth at its peak, but astronomers soon found there was zero chance ...

NASA reveals the true, bizarre reason for the 3I/ATLAS comet's 16.16-hour pulse. Scientists link the interstellar object's ...

In 1993, Mike Lawson, an aerospace entrepreneur based in Roswell, Georgia, unveiled his vision for a brave new future of ...

Hosted onboard Firefly’s Blue Ghost lander, Volta’s LightPort will demonstrate technologies to survive the lunar night and ...