Space has long been a matter of great curiosity and perplexity for humans. Astronauts are trained to observe with eagle-eyed precision, yet their accounts of experiences in space are often packed with ...

When Soviet cosmonaut Yuri Gagarin became the first human into space on April 12, 1961, the American space program rose to the occasion, and less than a month later, astronaut Alan Shepard became the ...

Have you ever stood in front of your gym's sauna, wondering which type would actually help you feel better? You're loo ...

On, NASA marked a major milestone in America’s early space program with the first successful launch of a Mercury-Atlas rocket. [...] ...

Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar ...

Interstellar visitor comet 3I/Atlas may have bid farewell to Earth, but spacecraft traveling through the solar system kept a ...

This striking image from the science camera on ESA's Jupiter Icy Moons Explorer (Juice) shows interstellar comet 3I/ATLAS ...

What is a planetary retrograde? And what connection does it have to astrology? We explain how planets move across the sky.

By taking advantage of a maneuver that would see a spacecraft fire rocket engines while in the solar corona, that ...

"I feel really encouraged that this is the right path for me," Orinda resident Harry Davis told the Chronicle of his win for ...

Want to catch a glimpse of the planetary alignment from Arizona? Here's what to know, including a list of official dark sky locations in the state.

Mercury puts on its best evening show of 2026 this February, with bright views after sunset and a helpful crescent moon. When you purchase through links on our site, we may earn an affiliate ...