You can now read 10 articles in a month for free on Read as much as you want anywhere and anytime for just 99¢.

The Boston Globe


Astronomers find Earth-like planet, but it’s infernally hot

NEW YORK — Kepler-78b, a planet 400 light-years away, is like hell on Earth.

Astronomers described it Wednesday as the first Earth-size planet that seems to be made of the same mixture of rock and iron as Earth and that orbits a star similar to our sun.

Loading comments...

You have reached the limit of 10 free articles in a month

Stay informed with unlimited access to Boston’s trusted news source.

  • High-quality journalism from the region’s largest newsroom
  • Convenient access across all of your devices
  • Today’s Headlines daily newsletter
  • Subscriber-only access to exclusive offers, events, contests, eBooks, and more
  • Less than 25¢ a week