The curious minds at What If explore a brand new planet forming inside our solar system, imagining its effects on orbits, gravity, and cosmic dynamics.

The atmospheric carbon dioxide was thought to be the result of the oxidation of oxygen molecules in the exosphere. As a ...

The Earth-size planet HD 137010 b has a ‘50% chance of residing in the habitable zone’ of its sun-like star, scientists say ...

With an orbital period around one year, much like Earth's 13-hour transit duration, HD 137010 b tantalises as Earth 2.0.

This rare alignment unfolds low in the western sky during twilight, 30-45 minutes after sunset, where the brilliant white glow of Venus meets the subtler orange-white shimmer of Mercury.

Even the tiniest discoveries can have outsized significance, a worm in a salty lake hints at life yet to be found.

In a groundbreaking discovery, Australian astronomers have identified a potential Earth-like planet candidate located approximately 150 light-years away from our home planet. This finding, reported by ...

The interstellar visitor may still have a few things to tell us before it leaves our solar system.

Jeremy Hansen will be the first non-American to fly to the moon — and will make Canada only the second country in the world ...

A range of gorgeous skywatching targets are visible to the naked eye in city skies.

Artemis 2 will use the SLS to send a crew of four aboard an Orion spacecraft on a 10-day mission looping within 4,600 miles (7,400 km) of the Moon. The crew consists of Commander Reid Wiseman, Pilot ...