A small planet, just a bit bigger than Earth, has been spotted in our stellar neighborhood, just 39 light-years away.

Known
 as GJ 1132b, it is the closest rocky exoplanet to have ever been found,
 and astronomers say it could provide our most in-depth look yet at an 
alien world not so different than our own.
Drake Deming, an 
astronomer at the University of Maryland, was so excited about the 
findings, published this week in Nature, that he described the new world
 as "arguably the most important planet ever found outside the solar 
system" in an accompanying News and Views article.
The newly 
discovered planet is just 16 percent larger than Earth, and it is made 
of rock and metal like our own planet. However, scientists say it is not
 likely to host life as we know it.
Its small, dim, sun is just 
one-fifth the size of our own sun, but GJ 1132b circles it at a distance
 of just 1.4 million miles, completing a full orbit once every 1.6 Earth
 days. (For perspective, Mercury orbits the sun from a distance of 36 
million miles.)
The exoplanet's close proximity to its host star 
keeps its temperature at a broiling 500 degrees Fahrenheit — or about as
 hot as the highest setting on your home oven, said Zachory 
Berta-Thompson, a post-doc at the Massachusetts Institute of 
Technology's Kavli Institute for Astrophysics and Space Research.