The future of the planet may not be the most comfortable of subjects to think about — from the threat of climate change to worry about world wars — but for astronomers, it's something to consider when ...

A rocky planet in the Milky Way galaxy may have an atmosphere, raising the possibility that life could exist on its surface, according to experts. TRAPPIST-1e, a planet belonging to a collection of ...

— -- Astronomers on Monday reported the discovery of an Earth-like planet outside the solar system whose size and distance from its own star put it in the "habitable" zone and make for a surface ...

"Are we alone?" This ancient question has occupied humanity's mind for a long time. In 1995, the discovery of the first exoplanet orbiting a sun-like star opened the door to exploring this profound ...

In a potential landmark discovery, scientists using the James Webb Space Telescope have obtained what they call the strongest signs yet of possible life beyond our solar system, detecting in an alien ...

Thanks to the Kepler Space Telescope, NASA has announced the discovery of the first near-Earth size planet in the so-called habitable zone around another star 1,400 light-years from Earth, in the ...

Scientists are observing an Earth-like exoplanet that may contain water using NASA's James Webb Space Telescope, the space agency said in a news release. The exoplanet, known as TRAPPIST-1 e, orbits ...

It was so close to the star (1/20th of Earth's distance from the sun, well inside Mercury's orbit) that the planet's atmosphere would be like a furnace, with temperatures topping 1,000°C. The ...

Our solar system is a lot like the story of Goldilocks and the Three Bears. Planets that are located close to the sun can be too hot, while those located further from the sun can be too cold, making ...

"At this point, we can rule out TRAPPIST-1d from a list of potential Earth twins or cousins." There's bad news for our hopes of habitable planets existing around TRAPPIST-1, with the James Webb Space ...

Everyone knows the names of the planets, but Earth feels different. It doesn’t sound powerful like Jupiter or mysterious like Neptune. It’s plain, familiar, and oddly comforting; it’s a word that ...