In 2015, NASA’s super powerful Kepler Space Telescope discovered the closest copy of Earth to date. It’s called Kepler-452. Often nicknamed “Earth 2.0,” Kepler-452 orbits a star about the same size as ...

Scientists around the world are constantly on the hunt for planets outside our solar system that could potentially provide a habitable environment for life. Their telescopes, on the ground and in ...

Scientists from NASA announced Tuesday that they discovered an Earth-size planet orbiting its star's habitable zone. Called TOI 700 e, the planet is part of the TOI 700 system and is 95% the Earth's ...

On Dec. 12, at 11:15 p.m. EST, NASA's Lucy spacecraft, currently in a two-year orbit around the sun, will skim Earth's atmosphere, passing only about 220 miles (360 kilometers) above the surface. This ...

Caitlin O'Kane is a New York City journalist who works on the CBS News social media team as a senior manager of content and production. She writes about a variety of topics and produces "The Uplift," ...