The zodiacal light shines in the evening as the Moon reaches Last Quarter and skims past Spica and Antares in the sky this ...

Roughly 250 million years ago, traveling from present-day Australia to North America would have been surprisingly simple-a ...

The war in Ukraine isn’t just about safeguarding democracy or demonstrating Western resolve — it’s also about the future of ...

Swiss aviation pioneer Bertrand Piccard is developing a plane powered by liquid hydrogen after a much-hyped flight in 2015 ...

Perth, in Western Australia, is often considered to be the most isolated major urban area when it comes to distance. To put ...

The Egyptian satellite lab is the latest advancement in China’s secretive overseas space program. Beijing is building space ...

On the outskirts of Cairo, a cutting-edge space lab was supposed to be the first in Africa to produce homegrown satellites.

In the arid deserts of Ethiopia, a geological marvel has been quietly unfolding since 2005—a 35-mile-long fissure known as the East African Rift. Far from being a mere curiosity, this rift holds the ...

From supermoons to a total eclipse to the national park’s biggest and best-attended star parties, these are the must-see celestial shows of the year ...

Alex de Steiguer was about to send an email from a house on Star Island, 7 miles off the coast of Maine and New Hampshire, when she heard what she thought was a big plane flying over. Outside, a flock ...