1.   This is a major achievement because, in relative terms, planets are very small and old not emit light.

2.   Finding planets is proving hard enough, but finding life on them will prove infinitely more difficult.

3.   Another question is why only one large planet has been found around each of the four stars.

4.   Astronomers first found a planet around a Sun-like star only five years ago.

5.   A dozen planets have been found outside the solar system so far, all through the telltale wobbles caused by gravitational pull.

6.   A new planet is found.

7.   But it will take far more sensitive instruments to find such planets and determine their orbits, Fischer said.

8.   Finding a planet around a homier star, though, is if anything even harder than finding one around a pulsar.

9.   Finding a planet around such a star raises the possibility that any star, not just the single ones, might have a planetary family.

10.   Excitement about the prospects of finding new planets has risen with three recent discoveries.