Two Neptune - Mass Planets Found, Earth-Size Worlds Next

Raimonda Razumaitė VB 3/2 gr.
Milda Vonžodaitė VB-3/1 gr.
In all times people wanted to go to other planets, to see it in closer. When people were looking in the sky, they were dreaming about ships, which can fly into the sky. From our planet people can look around one planet: the Moon. And when people invented the space ships, they had flown to the Moon and investigated it first. Then people wanted to reach much more and later they could fly to other planets and investigated all planets in Sun’s system. In our job we wrote about some of them.
Earth-Size Worlds Next
Planet hunters have found two worlds roughly the mass of Neptune, each orbiting a star within 30 light-years of our solar system. The planets are likely gaseous or mixtures of ice and rock, but they might be barren rock worlds like Mercury.
The announcement today by a U.S. team comes just a week after a competing European group revealed a similar discovery of a slightly less massive planet that most likely has a rocky surface and was billed as a "super Earth."
The discoveries pushed the limit of current search technology and reveal worlds of a sort never seen outside our solar system. Together they suggest is it just a matter of time before objects much like Earth are detected.
The planets were found using a Doppler-shift method that notes a wobble in a star caused by the gravity of the orbiting planet. No pictures are available. The two newest discoveries were led by Geoff Marcy of the University of California, Berkeley and Paul Butler from the Carnegie Institution of Washington, this globe's most prolific planet-hunting duo, and will be discussed in papers to be published in the Astrophysical Journal.
Hot places
One of the planets orbits the star 55 Cancri, already known to host...

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