| Mail Online
Dr Howard Smith, a senior astrophysicist at Harvard University, believes there is very little hope of discovering aliens and, even if we did, it would be almost impossible to make contact.
So far astronomers have discovered a total of 500 planets in distant solar systems – known as extrasolar systems – although they believe billions of others exist.
But Dr Smith points out that many of these planets are either too close to their sun or too far away, meaning their surface temperatures are so extreme they could not support life.
Others have unusual orbits which cause vast temperature variations making it impossible for water to exist as a liquid – an essential element for life.
Dr Smith said: ‘We have found that most other planets and solar systems are wildly different from our own.
‘They are very hostile to life as we know it.’
‘The new information we are getting suggests we could effectively be alone in the universe.
No comments:
Post a Comment