Astronomers have found a rocky world orbiting a star about 15 light years from our own corner of the universe. With apparently about twice earth’s diameter, and about seven and a half times the mass, it’s the smallest extra-solar planet yet discovered.
“We keep pushing the limits of what we can detect, and we’re getting closer and closer to finding Earths,” said team member Steven Vogt from the University of California, Santa Cruz.
That’s boggling enough. But what I had somehow missed is that in the ten years that scientists have been spotting extra-solar planets, they’ve found 150 of them. That’s more than once a month. Makes my mind just reel: Every month, humanity finds another planet around a distant star. Every single month.