Chris Stokel-Walker is a freelance journalist in Newcastle, England. SpaceX’s targeted $1.75-trillion valuation rests on engineering that hasn’t happened yet ...

Fossilized poo harbors remains from mammoths, bison and big cats, including some of the oldest DNA ever reconstructed ...

I’ve been a Scientific American subscriber since I was 12 years old, and it helped shape the way I look at the world. SciAm always educates and delights me, and inspires a sense of awe for our vast, ...

As Ebola rages, Moderna and others are racing to develop an mRNA vaccine for the rare Bundibugyo virus driving the current ...

The X-59 is designed for a quieter faster-than-the-speed-of-sound flight. It has a long nose that dissipates the pressure ...

The first participant has been treated in a landmark clinical trial of cellular reprogramming, which aims to rejuvenate aging ...

Mathematicians have considered how to watch every corner of a space—but soccer adds moving players, blocked views and ...

Tungsten is a coveted for military uses. Restoring domestic supply could help with ongoing munitions shortages ...

A study finding that even one drink a day causes health risks was deliberately sidelined by the Trump administration, a ...

Melting permafrost is releasing carbon into the atmosphere, but scientists may have underestimated just how bad the situation ...

SpaceX’s IPO—the largest in history—has out-of-this-world implications for AI, space commerce and extraterrestrial ...

Reusable rockets and Starlink made Elon Musk’s company dominant in spaceflight. Its record valuation leans on making Starship ...