General Galactic, cofounded by a former SpaceX engineer, plans to test its water-based propellant this fall. If successful, it could help usher in a new era of space travel. That's a big “if.” ...

The discovery of catalytic RNA transformed our understanding of life's beginnings. Clare Sansom explores how the RNA world hypothesis bridges the gap between non-living chemistry and the first cells ...

Astronomers have found a rocky planet where it should not exist, orbiting far from a cool red star. Could this strange ...

Every once in a while, the outer solar system reminds us that we've only discovered a negligible portion of it, and that the vast majority is still full of surprises. The latest example of this is a ...

An interstellar comet racing through our solar system released methanol, methane and cyanide, NASA says. Could these life linked molecules hint at how worlds across the cosmos are seeded?

Glistening on the water, soaking into skin and sand, sunshine is part of Australia’s identity. And in Sydney, solar scientists are trying to harness the power of the sun to produce energy — but not in ...

Earth just experienced a rare S4 solar radiation storm, the most intense since 2003 — powerful for satellites and astronauts, but harmless on the ground. When you purchase through links on our site, ...

Aurora alert! The colossal solar storm could impact and trigger impressive northern lights. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

The rand reached its strongest level against the dollar in three and a half years on Monday, driven by record prices for precious metals and optimism about South Africa’s economic outlook. The rand ...

Astronomers are testing a quieter way of searching for moons beyond the solar system, using careful measurements of motion rather than changes in light. A new study focuses on HD 206893 B, a ...