Space

Two Russian cosmonauts and an American astronaut are safely back on Earth after spending eight months aboard the International Space Station. Soyuz MS-27 crewmates Sergey Ryzhikov and Alexey Zubritsky of the Russian federal space corporation Roscosmos, along with Jonny Kim of NASA, landed on the cold, snow-flurry-covered steppe of Kazakhstan on Tuesday (Dec. 9). The spacecraft, descending under a…

Just as the sun slips behind the Chilean Andes, it seemed to send up a tiny emerald flare. The photograph, taken from Cerro Pachón in Chile by NOIRLab Audiovisual Ambassador Petr Horálek, captures a classic but elusive atmospheric trick of the light: the green flash. What is it? Despite the dramatic name, a green flash isn’t an explosion or a burst of energy. It’s simply sunlight being bent…

A team of international researchers say they’ve uncovered new data on the world’s first recorded solar eclipse using a surprising source — ancient Chinese texts. These findings could help us understand more about the progression of the Earth’s rotation through the centuries. The eclipse in question took place on July 17, 709 BCE, according to a chronicle titled “Spring and Autumn…

Get ready stargazers, the final full moon of 2025 rises tonight! Here’s what to expect when the “Cold Supermoon” looms large over the eastern horizon at sunset on Dec. 4. The exact moment of December’s full moon phase will take place at 8:13 p.m. EST (2313 UTC) on Dec. 4, at which time the lunar disk will appear fully illuminated opposite the sun in Earth’s sky, shining brightly above…