Extreme solar activity or even a software glitch could put us just days away from a satellite collision in low-Earth orbit.

"This confirms that life's building blocks can be formed in a diversity of environments throughout the universe." ...

As next-generation telescopes map this outer frontier, astronomers are bracing for discoveries that could reveal hidden planets, strange structures, and clues to the solar system’s chaotic youth.

Some of my favorites were James Fenimore Cooper’s Hawkeye, Daniel Boone, the frontier trailblazer who opened the Cumberland ...

After years of work building an exquisitely sensitive instrument, University of Chicago scientists stood and watched as it flew up and out of sight into the fiercely blue Antarctic sky. Launched on ...

Between 1992 and 2018, over 2000 distinct hunks of frozen rock were identified, and it’s likely that there’s at least a ...

But there's something else, too. An added twist, a further turn of the screw — an additional subtlety that makes the 1956 ...

Scientists have shown that the building blocks of proteins can form naturally in deep space. This means the raw ingredients for life may exist long before planets are formed.

There’s endless debate among cosmologists about what really makes up the emptiness of outer space, though many believe that mysterious stuff that we now call dark matter and dark energy represent a ...

Before humans sent the first dogs and chimps into space, there was genuine fear: Can a living creature evolved for gravity survive in sustained zero-G? Many posited that the result would be fatal, as ...

A deep-space observation of 3I/ATLAS, the interstellar object captured against a dense star field, with a magnified inset highlighting its bright nucleus and faint, elongated coma. The object’s ...

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