spaceplasma: “Now, for the first time in its billions of years of history, our planet is protected by far-seeing sentinels, able to anticipate danger from the distant future – a comet on a collision course, or global warming–and devise schemes
spaceplasma: “Now, for the first time in its billions of years of history, our planet is protected by far-seeing sentinels, able to anticipate danger from the distant future – a comet on a collision course, or global warming–and devise schemes
