Nasa discovers 10 new 'rocky' planets like Earth

Space agency says latest discoveries have 'significant implications for the search for life' in other parts of the universe

Ian Johnston
Science Correspondent
@montaukian
Monday 19 June 2017 17:29
comments
Finding exoplanets could help scientists work out whether life exists in other parts of the universe
Finding exoplanets could help scientists work out whether life exists in other parts of the universe

Nasa has announced the discovery of 219 new suspected planets outside our solar system.

The figure includes 10 that are “rocky” like Earth and which exist in their solar system's 'Goldilocks zone', neither too close to their star, and therefore too hot, nor too far away and too cold for liquid water to exist.

The presence of water is seen as a key factor for the existence of life.

Nasa reveal plans to fly spacecraft straight into the sun

In a tweet, Nasa said: "Scientists using @NASAKepler have identified 219 potential new worlds!"

The discoveries bring the total number of suspected exoplanets – planets outside our solar system – found by the Kepler space telescope to more than 4,000.

"This carefully measured catalogue is the foundation for directly answering one of astronomy’s most compelling questions – how many planets like our Earth are in the galaxy?” said Susan Thompson, a research scientist at the SETI Institute, which searches for signs of extra-terrestrial life.

And, in a statement, Nasa said: “There are now 4,034 planet candidates identified by Kepler. Of which, 2,335 have been verified as exoplanets. Of roughly 50 near-Earth size habitable zone candidates detected by Kepler, more than 30 have been verified.

“Additionally, results using Kepler data suggest two distinct size groupings of small planets. Both results have significant implications for the search for life.”

Mario Perez, a Kepler programme scientist at Nasa, stressed the importance of the space telescope.

“The Kepler data set is unique, as it is the only one containing a population of these near Earth-analogues – planets with roughly the same size and orbit as Earth,” he said.

Nasa unveils futuristic Mars rover concept vehicle

“Understanding their frequency in the galaxy will help inform the design of future Nasa missions to directly image another Earth.”

Join our new commenting forum

Join thought-provoking conversations, follow other Independent readers and see their replies

View comments