At the 2025 Met Gala, the red carpet wasn’t red at all, but rather midnight blue with dotted white-and-yellow blooms.

Hidden away in the darkest corners of Earth’s atmosphere, a faint green airglow quietly paints the night sky, far from the ...

Meanwhile, astronomers are keeping watch for a rare nova—a sudden explosion of a distant star—that could appear to the naked eye sometime in the coming months. When it happens, the nova will ...