A huddle of seven worlds, all close in size to Earth, and perhaps warm enough for water and the life it can sustain, has been spotted around a small, faint star in the constellation of Aquarius.
The discovery, which has thrilled astronomers, has raised hopes that the hunt for alien life beyond the solar system can start much sooner than previously thought, with the next generation of telescopes that are due to switch on in the next decade.
Science Glance
Some 252 million years ago, the planet suffered the most catastrophic mass extinction event in its 4.5 billion-year history.
“We come in peace” might be the traditional opening gambit for aliens in science fiction, but we should be wary about beaming back a response to any advanced life-forms in real life, Stephen Hawking has warned.
Talk about cracking a cold case: Nearly 3.2 million years ago, Lucy died. Now we may know how.





























