In the quest to find approximately Earth-sized planets located in the "Goldilocks zone" i.e. neither too hot nor too cold) ...

NASA’s Transiting Exoplanet Survey Satellite (TESS) has been used to discover Earth-size planet TOI 700 e. It is "orbiting within the habitable zone of its star – the range of distances where liquid ...

K2-360 is a newly found planetary system with a super-dense planet, likely the core of a former larger world, shaped by ...

NASA is tracking a bus-sized asteroid that will be zooming past the Earth today at a speed of nearly 28,028 miles per hour. The space rock, known as "2025 FO6," is estimated to be about 35 feet across ...

Every now and then, space surprises us– and this time, the buzz is all about four small rocky planets found around one of our closest stellar neighbours. No, they’re not Earth 2.0. But they do ...

Proctor/J. Pollard A quartet of Earth-like worlds, each about 20% to 30% the size of our planet, circle one of our closest stellar neighbors, a new study reveals. The rocky alien worlds are close ...

Since Venus and Mercury are "inferior" planets compared with the Earth — meaning their orbits are closer to the sun, according to NASA — they create inferior conjunctions when swinging between ...

This movement is a testament to the power of collective action and the hope we share for a healthier planet. To everyone who gave an hour for Earth, thank you. Your actions, big and small, inspire us ...

The record-breaking planet is five times the Earth's size giving us an example of the wonderful variety of planets in the universe. The star-orbiting time for 55 Cancri e takes just 17 hours ...

What remains is an incredibly dense core, roughly the size of Earth – a white dwarf ... to each other than our solar system's innermost planet Mercury is to the sun, completing an orbit every ...

Each of these planets, the researchers wrote in the March 11 study, is about four times the size of Mercury, or about 20% the mass of Earth. ‘It’s a really exciting find,’ study lead author ...