Their analysis showed that the planet lies about 3,000 parsecs, or just under 10,000 light-years, from Earth. Its mass is ...

While most planets that we are familiar with stick relatively close to their host star in a predictable orbit, some planets ...

However, what constitutes a planet in particular is a question that may seem very simple but has been escalating in ...

Rogue planets — worlds that drift through space alone without a star — largely remain a mystery to scientists. Now, ...

When a star is young, it is often still surrounded by a primordial rotating disk of gas and dust, from which planets can form. Astronomers like to find such disks because they might be able to catch ...

Gaia data reveals signs of planets forming around young stars by measuring stellar motion, identifying planetary, brown dwarf, and stellar companions in early star systems ...

Most planets are part of a star system of their own – but some go their own way, and they have remained largely mysterious ...

This one-million-year-old star-forming region contains thousands of new stars and hundreds of planetary mass objects floating freely in the nebula, not orbiting stars. A groundbreaking study published ...

How do rogue planetary-mass objects -- celestial bodies with masses between stars and planets -- form? An international team of astronomers has used advanced simulations to show that these enigmatic ...

The Planetary Society continues to fund the search for potentially hazardous comets and asteroids that orbit close to our planet by awarding Gene Shoemaker Near Earth Object Grants to five researchers ...

The NASA project NEOWISE, which has given astronomers a detailed view of near-Earth objects – some of which could strike the Earth – ended its mission and burned on reentering the atmosphere after ...